Home / 20,644,920.34-28,491,805.61-11,354,127.44

Finding the Fourth Proportional to 20,644,920.34, 28,491,805.61 and 11,354,127.44

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Solution

The fourth proportional to 20,644,920.34, 28,491,805.61 and 11,354,127.44 is: 15,669,694.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,644,920.34 : 28,491,805.61 = 11,354,127.44 : x
  2. Step 2: Convert to fraction form
    20,644,920.34/28,491,805.61 = 11,354,127.44/x
  3. Step 3: Cross multiply
    20,644,920.34x = 28,491,805.61 × 11,354,127.44
  4. Step 4: Simplify right side
    20,644,920.34x = 323,499,591,906,105.81
  5. Step 5: Solve for x
    x = 323,499,591,906,105.81/20,644,920.34
  6. Step 6: Final answer
    x = 15,669,694.36

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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.