Home / 89,815,101.90-134,722,652.85-86,287,908.30

Finding the Fourth Proportional to 89,815,101.90, 134,722,652.85 and 86,287,908.30

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Solution

The fourth proportional to 89,815,101.90, 134,722,652.85 and 86,287,908.30 is: 129,431,862.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,815,101.90 : 134,722,652.85 = 86,287,908.30 : x
  2. Step 2: Convert to fraction form
    89,815,101.90/134,722,652.85 = 86,287,908.30/x
  3. Step 3: Cross multiply
    89,815,101.90x = 134,722,652.85 × 86,287,908.30
  4. Step 4: Simplify right side
    89,815,101.90x = 11,624,935,915,053,532
  5. Step 5: Solve for x
    x = 11,624,935,915,053,532/89,815,101.90
  6. Step 6: Final answer
    x = 129,431,862.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.