4.6 billion = 4,600,000,000
14,050,000,000
6,000,000,000
7,800,000,000
9.1 billion in standard notation is 9,100,000,000
3.4 billion = 3,400,000,000
26,300,000,000
5,200,000,000
4.5 billion = 4,500,000,000
0.6 billion = 600,000,000
Four billion is 4,000,000,000
44.3 billion = 44,300,000,000