Home / 386,587,729.92-533,491,154.74-212,747,473.92

Finding the Fourth Proportional to 386,587,729.92, 533,491,154.74 and 212,747,473.92

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Solution

The fourth proportional to 386,587,729.92, 533,491,154.74 and 212,747,473.92 is: 293,591,562.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,587,729.92 : 533,491,154.74 = 212,747,473.92 : x
  2. Step 2: Convert to fraction form
    386,587,729.92/533,491,154.74 = 212,747,473.92/x
  3. Step 3: Cross multiply
    386,587,729.92x = 533,491,154.74 × 212,747,473.92
  4. Step 4: Simplify right side
    386,587,729.92x = 113,498,895,529,598,832
  5. Step 5: Solve for x
    x = 113,498,895,529,598,832/386,587,729.92
  6. Step 6: Final answer
    x = 293,591,562.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.