Home / 87,191,168.01-130,838,248.11-31,854,084.72

Finding the Fourth Proportional to 87,191,168.01, 130,838,248.11 and 31,854,084.72

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Solution

The fourth proportional to 87,191,168.01, 130,838,248.11 and 31,854,084.72 is: 47,799,940.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,191,168.01 : 130,838,248.11 = 31,854,084.72 : x
  2. Step 2: Convert to fraction form
    87,191,168.01/130,838,248.11 = 31,854,084.72/x
  3. Step 3: Cross multiply
    87,191,168.01x = 130,838,248.11 × 31,854,084.72
  4. Step 4: Simplify right side
    87,191,168.01x = 4,167,732,639,912,319.50
  5. Step 5: Solve for x
    x = 4,167,732,639,912,319.50/87,191,168.01
  6. Step 6: Final answer
    x = 47,799,940.46

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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.