Home / 391,815,926.79-587,808,920.79-119,179,607.91

Finding the Fourth Proportional to 391,815,926.79, 587,808,920.79 and 119,179,607.91

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Solution

The fourth proportional to 391,815,926.79, 587,808,920.79 and 119,179,607.91 is: 178,795,275.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,815,926.79 : 587,808,920.79 = 119,179,607.91 : x
  2. Step 2: Convert to fraction form
    391,815,926.79/587,808,920.79 = 119,179,607.91/x
  3. Step 3: Cross multiply
    391,815,926.79x = 587,808,920.79 × 119,179,607.91
  4. Step 4: Simplify right side
    391,815,926.79x = 70,054,836,703,548,160
  5. Step 5: Solve for x
    x = 70,054,836,703,548,160/391,815,926.79
  6. Step 6: Final answer
    x = 178,795,275.83

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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.