Home / 80,919,005.40-121,378,508.10-53,656,082.10

Finding the Fourth Proportional to 80,919,005.40, 121,378,508.10 and 53,656,082.10

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Solution

The fourth proportional to 80,919,005.40, 121,378,508.10 and 53,656,082.10 is: 80,484,123.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,919,005.40 : 121,378,508.10 = 53,656,082.10 : x
  2. Step 2: Convert to fraction form
    80,919,005.40/121,378,508.10 = 53,656,082.10/x
  3. Step 3: Cross multiply
    80,919,005.40x = 121,378,508.10 × 53,656,082.10
  4. Step 4: Simplify right side
    80,919,005.40x = 6,512,695,195,789,115
  5. Step 5: Solve for x
    x = 6,512,695,195,789,115/80,919,005.40
  6. Step 6: Final answer
    x = 80,484,123.15

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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.