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Finding the Fourth Proportional to 198,242,978.16, 297,262,361.60 and 88,974,476.80

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Solution

The fourth proportional to 198,242,978.16, 297,262,361.60 and 88,974,476.80 is: 133,415,888.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,242,978.16 : 297,262,361.60 = 88,974,476.80 : x
  2. Step 2: Convert to fraction form
    198,242,978.16/297,262,361.60 = 88,974,476.80/x
  3. Step 3: Cross multiply
    198,242,978.16x = 297,262,361.60 × 88,974,476.80
  4. Step 4: Simplify right side
    198,242,978.16x = 26,448,763,095,692,412
  5. Step 5: Solve for x
    x = 26,448,763,095,692,412/198,242,978.16
  6. Step 6: Final answer
    x = 133,415,888.63

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