Finding the Fourth Proportional to 1,939,664,801.50, 2,909,522,396.49 and 647,200,289.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,939,664,801.50 : 2,909,522,396.49 = 647,200,289.50 : x
2. Step 2: Convert to fraction form
   1,939,664,801.50/2,909,522,396.49 = 647,200,289.50/x
3. Step 3: Cross multiply
   1,939,664,801.50x = 2,909,522,396.49 × 647,200,289.50
4. Step 4: Simplify right side
   1,939,664,801.50x = 1,883,043,737,315,061,760
5. Step 5: Solve for x
   x = 1,883,043,737,315,061,760/1,939,664,801.50
6. Step 6: Final answer
   x = 970,808,840.71