Home / 391,797,780.20-587,696,670.30-119,168,109.80

Finding the Fourth Proportional to 391,797,780.20, 587,696,670.30 and 119,168,109.80

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Solution

The fourth proportional to 391,797,780.20, 587,696,670.30 and 119,168,109.80 is: 178,752,164.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,797,780.20 : 587,696,670.30 = 119,168,109.80 : x
  2. Step 2: Convert to fraction form
    391,797,780.20/587,696,670.30 = 119,168,109.80/x
  3. Step 3: Cross multiply
    391,797,780.20x = 587,696,670.30 × 119,168,109.80
  4. Step 4: Simplify right side
    391,797,780.20x = 70,034,701,335,404,792
  5. Step 5: Solve for x
    x = 70,034,701,335,404,792/391,797,780.20
  6. Step 6: Final answer
    x = 178,752,164.70

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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.