Home / 15,156,082.76-20,915,695.14-8,280,991.40

Finding the Fourth Proportional to 15,156,082.76, 20,915,695.14 and 8,280,991.40

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Solution

The fourth proportional to 15,156,082.76, 20,915,695.14 and 8,280,991.40 is: 11,427,932.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,156,082.76 : 20,915,695.14 = 8,280,991.40 : x
  2. Step 2: Convert to fraction form
    15,156,082.76/20,915,695.14 = 8,280,991.40/x
  3. Step 3: Cross multiply
    15,156,082.76x = 20,915,695.14 × 8,280,991.40
  4. Step 4: Simplify right side
    15,156,082.76x = 173,202,691,579,361.81
  5. Step 5: Solve for x
    x = 173,202,691,579,361.81/15,156,082.76
  6. Step 6: Final answer
    x = 11,427,932.56

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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.