Home / 81,480,997.22-122,275,341.17-38,362,531.64

Finding the Fourth Proportional to 81,480,997.22, 122,275,341.17 and 38,362,531.64

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Solution

The fourth proportional to 81,480,997.22, 122,275,341.17 and 38,362,531.64 is: 57,569,148.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,480,997.22 : 122,275,341.17 = 38,362,531.64 : x
  2. Step 2: Convert to fraction form
    81,480,997.22/122,275,341.17 = 38,362,531.64/x
  3. Step 3: Cross multiply
    81,480,997.22x = 122,275,341.17 × 38,362,531.64
  4. Step 4: Simplify right side
    81,480,997.22x = 4,690,791,644,234,107
  5. Step 5: Solve for x
    x = 4,690,791,644,234,107/81,480,997.22
  6. Step 6: Final answer
    x = 57,569,148.69

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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.