Home / 865,675,531.28-1,298,532,201.24-520,917,551.12

Finding the Fourth Proportional to 865,675,531.28, 1,298,532,201.24 and 520,917,551.12

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Solution

The fourth proportional to 865,675,531.28, 1,298,532,201.24 and 520,917,551.12 is: 781,387,702.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,675,531.28 : 1,298,532,201.24 = 520,917,551.12 : x
  2. Step 2: Convert to fraction form
    865,675,531.28/1,298,532,201.24 = 520,917,551.12/x
  3. Step 3: Cross multiply
    865,675,531.28x = 1,298,532,201.24 × 520,917,551.12
  4. Step 4: Simplify right side
    865,675,531.28x = 676,428,214,320,403,840
  5. Step 5: Solve for x
    x = 676,428,214,320,403,840/865,675,531.28
  6. Step 6: Final answer
    x = 781,387,702.30

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