Home / 87,685,005.80-131,527,508.70-84,157,812.20

Finding the Fourth Proportional to 87,685,005.80, 131,527,508.70 and 84,157,812.20

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Solution

The fourth proportional to 87,685,005.80, 131,527,508.70 and 84,157,812.20 is: 126,236,718.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,685,005.80 : 131,527,508.70 = 84,157,812.20 : x
  2. Step 2: Convert to fraction form
    87,685,005.80/131,527,508.70 = 84,157,812.20/x
  3. Step 3: Cross multiply
    87,685,005.80x = 131,527,508.70 × 84,157,812.20
  4. Step 4: Simplify right side
    87,685,005.80x = 11,069,067,376,308,466
  5. Step 5: Solve for x
    x = 11,069,067,376,308,466/87,685,005.80
  6. Step 6: Final answer
    x = 126,236,718.30

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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.