Home / 28,979,813.70-43,469,720.55-15,542,885.70

Finding the Fourth Proportional to 28,979,813.70, 43,469,720.55 and 15,542,885.70

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Solution

The fourth proportional to 28,979,813.70, 43,469,720.55 and 15,542,885.70 is: 23,314,328.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979,813.70 : 43,469,720.55 = 15,542,885.70 : x
  2. Step 2: Convert to fraction form
    28,979,813.70/43,469,720.55 = 15,542,885.70/x
  3. Step 3: Cross multiply
    28,979,813.70x = 43,469,720.55 × 15,542,885.70
  4. Step 4: Simplify right side
    28,979,813.70x = 675,644,897,919,591
  5. Step 5: Solve for x
    x = 675,644,897,919,591/28,979,813.70
  6. Step 6: Final answer
    x = 23,314,328.55

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Double scale
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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.