Home / 8,165,719.20-12,248,578.80-3,914,191.20

Finding the Fourth Proportional to 8,165,719.20, 12,248,578.80 and 3,914,191.20

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Solution

The fourth proportional to 8,165,719.20, 12,248,578.80 and 3,914,191.20 is: 5,871,286.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,165,719.20 : 12,248,578.80 = 3,914,191.20 : x
  2. Step 2: Convert to fraction form
    8,165,719.20/12,248,578.80 = 3,914,191.20/x
  3. Step 3: Cross multiply
    8,165,719.20x = 12,248,578.80 × 3,914,191.20
  4. Step 4: Simplify right side
    8,165,719.20x = 47,943,279,351,466.56
  5. Step 5: Solve for x
    x = 47,943,279,351,466.56/8,165,719.20
  6. Step 6: Final answer
    x = 5,871,286.80

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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.