Home / 172,046,388.17-258,150,294.77-85,791,520.97

Finding the Fourth Proportional to 172,046,388.17, 258,150,294.77 and 85,791,520.97

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Solution

The fourth proportional to 172,046,388.17, 258,150,294.77 and 85,791,520.97 is: 128,727,529.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,046,388.17 : 258,150,294.77 = 85,791,520.97 : x
  2. Step 2: Convert to fraction form
    172,046,388.17/258,150,294.77 = 85,791,520.97/x
  3. Step 3: Cross multiply
    172,046,388.17x = 258,150,294.77 × 85,791,520.97
  4. Step 4: Simplify right side
    172,046,388.17x = 22,147,106,425,452,428
  5. Step 5: Solve for x
    x = 22,147,106,425,452,428/172,046,388.17
  6. Step 6: Final answer
    x = 128,727,529.02

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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.