#1 Carlos Slim Helú – $74 B

Source: telecom, self-made. Country of citizenship: Mexico

#2 Bill Gates – $56 B

Source: Microsoft, self-made. Country of citizenship: United States

#3 Warren Buffet – $50 B

Source: Berkshire Hathaway, self-made. Country of citizenship: United States

#4 Bernard Arnault – $41 B

Source: LVMH, inherited and growing. Country of citizenship: France

#5 Larry Ellison – $39.5 B

Source: Oracle, self-made. Country of citizenship: United States

#6  Lakshmi Mittal – $31.1 B

Source: Steel, inherited and growing. Country of citizenship: India

#7 Amancio Ortega – $31 B

Source: Zara, self-made. Country of citizenship: Spain

#8 Eike Batista – $30 B

Source: mining, oil, self-made. Country of citizenship: Brazil

#9 Mukesh Ambani – $27 B

Source: petrochemicals, oil & gas, inherited and growing. Country of citizenship: India

#10 Christy Walton & Family – $26.5 B

Source: Walmart, inherited. Country of citizenship: United States