Home / 12,627,376.38-18,941,740.72-3,990,819.83

Finding the Fourth Proportional to 12,627,376.38, 18,941,740.72 and 3,990,819.83

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Solution

The fourth proportional to 12,627,376.38, 18,941,740.72 and 3,990,819.83 is: 5,986,443.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,627,376.38 : 18,941,740.72 = 3,990,819.83 : x
  2. Step 2: Convert to fraction form
    12,627,376.38/18,941,740.72 = 3,990,819.83/x
  3. Step 3: Cross multiply
    12,627,376.38x = 18,941,740.72 × 3,990,819.83
  4. Step 4: Simplify right side
    12,627,376.38x = 75,593,074,375,408.73
  5. Step 5: Solve for x
    x = 75,593,074,375,408.73/12,627,376.38
  6. Step 6: Final answer
    x = 5,986,443.43

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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.