World's Billionaires 2011

No. 1

Carlos Slim Helú & family

Net Worth: $74 billion ↑        Source: Telecom           Citizenship: Mexico

No. 2 

Bill Gates

Net Worth: $56 billion ↑        Source: Microsoft           Citizenship: U.S.

No. 3  

Warren Buffett

Net Worth: $50 billion ↑        Source: Berkshire Hathaway      Citizenship: U.S.

No. 4

 Bernard Arnault

Net Worth: $41 billion ↑         Source: LVMH                 Citizenship: France

No. 5  

Larry Ellison

Net Worth: $39.5 billion ↑     Source: Oracle                  Citizenship: U.S.

No. 6 

Lakshmi Mittal

Net Worth: $31.1 billion ↑       Source: Steel                    Citizenship: India

No. 7  

Amancio Ortega 
Net Worth: $31 billion ↑          Source: Zara                      Citizenship: Spain

No. 8

 Eike Batista

Net Worth: $30 billion ↑         Source: Mining, oil           Citizenship: Brazil

No. 9 

Mukesh Ambani

Net Worth: $27 billion ↓         Source: Petrochemicals   Citizenship: India

No. 10 

Christy Walton & family

Net Worth: $26.5 billion ↑      Source: Wal-Mart              Citizenship: U.S.