Home / 21,123,306.38-29,149,408.59-11,955,752.30

Finding the Fourth Proportional to 21,123,306.38, 29,149,408.59 and 11,955,752.30

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Solution

The fourth proportional to 21,123,306.38, 29,149,408.59 and 11,955,752.30 is: 16,498,511.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,123,306.38 : 29,149,408.59 = 11,955,752.30 : x
  2. Step 2: Convert to fraction form
    21,123,306.38/29,149,408.59 = 11,955,752.30/x
  3. Step 3: Cross multiply
    21,123,306.38x = 29,149,408.59 × 11,955,752.30
  4. Step 4: Simplify right side
    21,123,306.38x = 348,503,108,793,532.25
  5. Step 5: Solve for x
    x = 348,503,108,793,532.25/21,123,306.38
  6. Step 6: Final answer
    x = 16,498,511.29

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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.