Home / 20,892,031.10-31,338,046.65-18,372,607.10

Finding the Fourth Proportional to 20,892,031.10, 31,338,046.65 and 18,372,607.10

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Solution

The fourth proportional to 20,892,031.10, 31,338,046.65 and 18,372,607.10 is: 27,558,910.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,892,031.10 : 31,338,046.65 = 18,372,607.10 : x
  2. Step 2: Convert to fraction form
    20,892,031.10/31,338,046.65 = 18,372,607.10/x
  3. Step 3: Cross multiply
    20,892,031.10x = 31,338,046.65 × 18,372,607.10
  4. Step 4: Simplify right side
    20,892,031.10x = 575,761,618,381,921.25
  5. Step 5: Solve for x
    x = 575,761,618,381,921.25/20,892,031.10
  6. Step 6: Final answer
    x = 27,558,910.65

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.