By | October 07 2011 10:57 PM

Who are the 10 richest people in the world? Glad you asked.

Some of the names on the list may surprise you. The sources of their wealth are varied, from a business sector standpoint. Furthermore, the United States has four on the top 10 list -- the most of any nation.

9. Mukesh Ambani, $27 billion, Indian business magnate

Photo: REUTERS

9. Mukesh Ambani, $27 billion, Indian business magnate.

Mubadala Development Company is buying a $2 billion stake in Eike Batista's Brazilian business empire

Photo: REUTERS

Brazilian mogul Eike Batista on Tuesday announced the sale a 5.63 percent equity stake in his ESX Group to Abu Dhabi's sovereign-wealth fund for $2 billion.

7. Amancio Ortega, $31 billion, Spanish fashion entrepreneur.

Photo: REUTERS

7. Amancio Ortega, $31 billion, Spanish fashion entrepreneur.

6. Lakshmi Mittal, $31.1 billion, Indian steel magnate

Photo: REUTERS

6. Lakshmi Mittal, $31.1 billion, Indian steel magnate.

CEO of Oracle Corporation Larry Ellison has also hit the list with his net worth estimated at $33 billion.

Photo: REUTERS

Larry Ellison's Oracle missed profit expectations and saw its shares plummet on Wednesday.

4. Bernard Arnault, $41.0 billion, French businessman

Photo: REUTERS

4. Bernard Arnault, $41.0 billion, French businessman.

10. Christy Walton, $26.5 billion, U.S. philanthropist, daughter-in-law of Sam Walton

Photo: REUTERS

10. Christy Walton, $26.5 billion, U.S. philanthropist, daughter-in-law of Sam Walton, founder of Wal-Mart (WMT). [Note: No photo available of Christy Walton.]

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