Home / 3,987,638,870.80-5,981,458,306.20-2,681,569,469.20

Finding the Fourth Proportional to 3,987,638,870.80, 5,981,458,306.20 and 2,681,569,469.20

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Solution

The fourth proportional to 3,987,638,870.80, 5,981,458,306.20 and 2,681,569,469.20 is: 4,022,354,203.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987,638,870.80 : 5,981,458,306.20 = 2,681,569,469.20 : x
  2. Step 2: Convert to fraction form
    3,987,638,870.80/5,981,458,306.20 = 2,681,569,469.20/x
  3. Step 3: Cross multiply
    3,987,638,870.80x = 5,981,458,306.20 × 2,681,569,469.20
  4. Step 4: Simplify right side
    3,987,638,870.80x = 16,039,695,975,198,662,656
  5. Step 5: Solve for x
    x = 16,039,695,975,198,662,656/3,987,638,870.80
  6. Step 6: Final answer
    x = 4,022,354,203.80

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Double scale
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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.