Home / 391,815,931.48-587,808,927.83-119,179,612.60

Finding the Fourth Proportional to 391,815,931.48, 587,808,927.83 and 119,179,612.60

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Solution

The fourth proportional to 391,815,931.48, 587,808,927.83 and 119,179,612.60 is: 178,795,282.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,815,931.48 : 587,808,927.83 = 119,179,612.60 : x
  2. Step 2: Convert to fraction form
    391,815,931.48/587,808,927.83 = 119,179,612.60/x
  3. Step 3: Cross multiply
    391,815,931.48x = 587,808,927.83 × 119,179,612.60
  4. Step 4: Simplify right side
    391,815,931.48x = 70,054,840,299,535,344
  5. Step 5: Solve for x
    x = 70,054,840,299,535,344/391,815,931.48
  6. Step 6: Final answer
    x = 178,795,282.87

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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.