4.7 billion km is 2,920,444,603.515 miles.
2 billion miles.
3,100,000,000 km divided by 1.6 = 1.94 billion miles
1 mile =1.609344 km 75 mile = 120.7008 km 120.7 km = 75 mile
75 miles = 120.7008 kilometres
46,6 miles.
Answer: 4,000,000,000 mi. = 6,437,376,000 km
2 billion miles = 3,218,688,000 km
5.2 billion km is 3,231,129,200 miles.
5.1 billion km is ~3.2 (3.16899) billion miles.
Answer: 75 km = 46.6028 mi.
4.5 billion km = ~2.8 billion miles.