Home / 87,689,530.80-131,534,296.20-84,162,337.20

Finding the Fourth Proportional to 87,689,530.80, 131,534,296.20 and 84,162,337.20

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Solution

The fourth proportional to 87,689,530.80, 131,534,296.20 and 84,162,337.20 is: 126,243,505.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,689,530.80 : 131,534,296.20 = 84,162,337.20 : x
  2. Step 2: Convert to fraction form
    87,689,530.80/131,534,296.20 = 84,162,337.20/x
  3. Step 3: Cross multiply
    87,689,530.80x = 131,534,296.20 × 84,162,337.20
  4. Step 4: Simplify right side
    87,689,530.80x = 11,070,233,790,149,080
  5. Step 5: Solve for x
    x = 11,070,233,790,149,080/87,689,530.80
  6. Step 6: Final answer
    x = 126,243,505.80

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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.