Home / 12,179,768.68-18,273,731.76-3,982,788.92

Finding the Fourth Proportional to 12,179,768.68, 18,273,731.76 and 3,982,788.92

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Solution

The fourth proportional to 12,179,768.68, 18,273,731.76 and 3,982,788.92 is: 5,975,517.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,179,768.68 : 18,273,731.76 = 3,982,788.92 : x
  2. Step 2: Convert to fraction form
    12,179,768.68/18,273,731.76 = 3,982,788.92/x
  3. Step 3: Cross multiply
    12,179,768.68x = 18,273,731.76 × 3,982,788.92
  4. Step 4: Simplify right side
    12,179,768.68x = 72,780,416,380,780.11
  5. Step 5: Solve for x
    x = 72,780,416,380,780.11/12,179,768.68
  6. Step 6: Final answer
    x = 5,975,517.13

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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.