Finding the Fourth Proportional to 147,978,124.40, 207,509,496.40 and 147,978,124.40

Step by Step Solution

1. Step 1: Write the proportion equation
   147,978,124.40 : 207,509,496.40 = 147,978,124.40 : x
2. Step 2: Convert to fraction form
   147,978,124.40/207,509,496.40 = 147,978,124.40/x
3. Step 3: Cross multiply
   147,978,124.40x = 207,509,496.40 × 147,978,124.40
4. Step 4: Simplify right side
   147,978,124.40x = 30,706,866,072,460,556
5. Step 5: Solve for x
   x = 30,706,866,072,460,556/147,978,124.40
6. Step 6: Final answer
   x = 207,509,496.40