Home / 391,486,747.05-586,863,229.41-132,520,752.81

Finding the Fourth Proportional to 391,486,747.05, 586,863,229.41 and 132,520,752.81

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Solution

The fourth proportional to 391,486,747.05, 586,863,229.41 and 132,520,752.81 is: 198,656,934.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,486,747.05 : 586,863,229.41 = 132,520,752.81 : x
  2. Step 2: Convert to fraction form
    391,486,747.05/586,863,229.41 = 132,520,752.81/x
  3. Step 3: Cross multiply
    391,486,747.05x = 586,863,229.41 × 132,520,752.81
  4. Step 4: Simplify right side
    391,486,747.05x = 77,771,556,957,920,928
  5. Step 5: Solve for x
    x = 77,771,556,957,920,928/391,486,747.05
  6. Step 6: Final answer
    x = 198,656,934.22

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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.