Home / 391,815,930.60-587,808,926.51-119,179,611.72

Finding the Fourth Proportional to 391,815,930.60, 587,808,926.51 and 119,179,611.72

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Solution

The fourth proportional to 391,815,930.60, 587,808,926.51 and 119,179,611.72 is: 178,795,281.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,815,930.60 : 587,808,926.51 = 119,179,611.72 : x
  2. Step 2: Convert to fraction form
    391,815,930.60/587,808,926.51 = 119,179,611.72/x
  3. Step 3: Cross multiply
    391,815,930.60x = 587,808,926.51 × 119,179,611.72
  4. Step 4: Simplify right side
    391,815,930.60x = 70,054,839,627,011,816
  5. Step 5: Solve for x
    x = 70,054,839,627,011,816/391,815,930.60
  6. Step 6: Final answer
    x = 178,795,281.55

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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.