Home / 21,227,123.20-29,290,470.60-11,933,422.96

Finding the Fourth Proportional to 21,227,123.20, 29,290,470.60 and 11,933,422.96

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Solution

The fourth proportional to 21,227,123.20, 29,290,470.60 and 11,933,422.96 is: 16,466,459.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,227,123.20 : 29,290,470.60 = 11,933,422.96 : x
  2. Step 2: Convert to fraction form
    21,227,123.20/29,290,470.60 = 11,933,422.96/x
  3. Step 3: Cross multiply
    21,227,123.20x = 29,290,470.60 × 11,933,422.96
  4. Step 4: Simplify right side
    21,227,123.20x = 349,535,574,367,245
  5. Step 5: Solve for x
    x = 349,535,574,367,245/21,227,123.20
  6. Step 6: Final answer
    x = 16,466,459.97

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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.