Home / 21,035,755.20-29,028,753.12-11,869,250.88

Finding the Fourth Proportional to 21,035,755.20, 29,028,753.12 and 11,869,250.88

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Solution

The fourth proportional to 21,035,755.20, 29,028,753.12 and 11,869,250.88 is: 16,379,233.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,035,755.20 : 29,028,753.12 = 11,869,250.88 : x
  2. Step 2: Convert to fraction form
    21,035,755.20/29,028,753.12 = 11,869,250.88/x
  3. Step 3: Cross multiply
    21,035,755.20x = 29,028,753.12 × 11,869,250.88
  4. Step 4: Simplify right side
    21,035,755.20x = 344,549,553,514,862.81
  5. Step 5: Solve for x
    x = 344,549,553,514,862.81/21,035,755.20
  6. Step 6: Final answer
    x = 16,379,233.84

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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.