Home / 87,689,195.80-131,533,793.70-84,162,002.20

Finding the Fourth Proportional to 87,689,195.80, 131,533,793.70 and 84,162,002.20

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Solution

The fourth proportional to 87,689,195.80, 131,533,793.70 and 84,162,002.20 is: 126,243,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,689,195.80 : 131,533,793.70 = 84,162,002.20 : x
  2. Step 2: Convert to fraction form
    87,689,195.80/131,533,793.70 = 84,162,002.20/x
  3. Step 3: Cross multiply
    87,689,195.80x = 131,533,793.70 × 84,162,002.20
  4. Step 4: Simplify right side
    87,689,195.80x = 11,070,147,434,753,746
  5. Step 5: Solve for x
    x = 11,070,147,434,753,746/87,689,195.80
  6. Step 6: Final answer
    x = 126,243,003.30

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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.