Home / 3,981,314,998.80-5,971,972,498.20-3,739,251,229.20

Finding the Fourth Proportional to 3,981,314,998.80, 5,971,972,498.20 and 3,739,251,229.20

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Solution

The fourth proportional to 3,981,314,998.80, 5,971,972,498.20 and 3,739,251,229.20 is: 5,608,876,843.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981,314,998.80 : 5,971,972,498.20 = 3,739,251,229.20 : x
  2. Step 2: Convert to fraction form
    3,981,314,998.80/5,971,972,498.20 = 3,739,251,229.20/x
  3. Step 3: Cross multiply
    3,981,314,998.80x = 5,971,972,498.20 × 3,739,251,229.20
  4. Step 4: Simplify right side
    3,981,314,998.80x = 22,330,705,504,642,940,928
  5. Step 5: Solve for x
    x = 22,330,705,504,642,940,928/3,981,314,998.80
  6. Step 6: Final answer
    x = 5,608,876,843.80

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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.