Home / 3,987,639,187.80-5,981,458,781.70-2,681,569,786.20

Finding the Fourth Proportional to 3,987,639,187.80, 5,981,458,781.70 and 2,681,569,786.20

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Solution

The fourth proportional to 3,987,639,187.80, 5,981,458,781.70 and 2,681,569,786.20 is: 4,022,354,679.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987,639,187.80 : 5,981,458,781.70 = 2,681,569,786.20 : x
  2. Step 2: Convert to fraction form
    3,987,639,187.80/5,981,458,781.70 = 2,681,569,786.20/x
  3. Step 3: Cross multiply
    3,987,639,187.80x = 5,981,458,781.70 × 2,681,569,786.20
  4. Step 4: Simplify right side
    3,987,639,187.80x = 16,039,699,146,407,378,944
  5. Step 5: Solve for x
    x = 16,039,699,146,407,378,944/3,987,639,187.80
  6. Step 6: Final answer
    x = 4,022,354,679.30

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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.