Finding the Fourth Proportional to 150,153,061.30, 210,516,616.70 and 150,153,061.30

Step by Step Solution

1. Step 1: Write the proportion equation
   150,153,061.30 : 210,516,616.70 = 150,153,061.30 : x
2. Step 2: Convert to fraction form
   150,153,061.30/210,516,616.70 = 150,153,061.30/x
3. Step 3: Cross multiply
   150,153,061.30x = 210,516,616.70 × 150,153,061.30
4. Step 4: Simplify right side
   150,153,061.30x = 31,609,714,452,023,704
5. Step 5: Solve for x
   x = 31,609,714,452,023,704/150,153,061.30
6. Step 6: Final answer
   x = 210,516,616.70