Home / 8,486,723.20-12,730,084.80-5,127,491.20

Finding the Fourth Proportional to 8,486,723.20, 12,730,084.80 and 5,127,491.20

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Solution

The fourth proportional to 8,486,723.20, 12,730,084.80 and 5,127,491.20 is: 7,691,236.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,486,723.20 : 12,730,084.80 = 5,127,491.20 : x
  2. Step 2: Convert to fraction form
    8,486,723.20/12,730,084.80 = 5,127,491.20/x
  3. Step 3: Cross multiply
    8,486,723.20x = 12,730,084.80 × 5,127,491.20
  4. Step 4: Simplify right side
    8,486,723.20x = 65,273,397,787,253.77
  5. Step 5: Solve for x
    x = 65,273,397,787,253.77/8,486,723.20
  6. Step 6: Final answer
    x = 7,691,236.80

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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.