Home / 5,278,049.28-7,283,861.55-2,986,160.76

Finding the Fourth Proportional to 5,278,049.28, 7,283,861.55 and 2,986,160.76

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Solution

The fourth proportional to 5,278,049.28, 7,283,861.55 and 2,986,160.76 is: 4,120,988.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278,049.28 : 7,283,861.55 = 2,986,160.76 : x
  2. Step 2: Convert to fraction form
    5,278,049.28/7,283,861.55 = 2,986,160.76/x
  3. Step 3: Cross multiply
    5,278,049.28x = 7,283,861.55 × 2,986,160.76
  4. Step 4: Simplify right side
    5,278,049.28x = 21,750,781,541,882.78
  5. Step 5: Solve for x
    x = 21,750,781,541,882.78/5,278,049.28
  6. Step 6: Final answer
    x = 4,120,988.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.