Home / 72,425,331.10-108,637,996.65-38,413,107.10

Finding the Fourth Proportional to 72,425,331.10, 108,637,996.65 and 38,413,107.10

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Solution

The fourth proportional to 72,425,331.10, 108,637,996.65 and 38,413,107.10 is: 57,619,660.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,425,331.10 : 108,637,996.65 = 38,413,107.10 : x
  2. Step 2: Convert to fraction form
    72,425,331.10/108,637,996.65 = 38,413,107.10/x
  3. Step 3: Cross multiply
    72,425,331.10x = 108,637,996.65 × 38,413,107.10
  4. Step 4: Simplify right side
    72,425,331.10x = 4,173,123,000,445,891.50
  5. Step 5: Solve for x
    x = 4,173,123,000,445,891.50/72,425,331.10
  6. Step 6: Final answer
    x = 57,619,660.65

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.