Home / 115,068,694.92-172,601,861.42-66,515,654.68

Finding the Fourth Proportional to 115,068,694.92, 172,601,861.42 and 66,515,654.68

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Solution

The fourth proportional to 115,068,694.92, 172,601,861.42 and 66,515,654.68 is: 99,772,799.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,068,694.92 : 172,601,861.42 = 66,515,654.68 : x
  2. Step 2: Convert to fraction form
    115,068,694.92/172,601,861.42 = 66,515,654.68/x
  3. Step 3: Cross multiply
    115,068,694.92x = 172,601,861.42 × 66,515,654.68
  4. Step 4: Simplify right side
    115,068,694.92x = 11,480,725,811,337,934
  5. Step 5: Solve for x
    x = 11,480,725,811,337,934/115,068,694.92
  6. Step 6: Final answer
    x = 99,772,799.36

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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.