Home / 9,195,510.92-12,690,198.72-5,121,129.92

Finding the Fourth Proportional to 9,195,510.92, 12,690,198.72 and 5,121,129.92

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Solution

The fourth proportional to 9,195,510.92, 12,690,198.72 and 5,121,129.92 is: 7,067,378.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,195,510.92 : 12,690,198.72 = 5,121,129.92 : x
  2. Step 2: Convert to fraction form
    9,195,510.92/12,690,198.72 = 5,121,129.92/x
  3. Step 3: Cross multiply
    9,195,510.92x = 12,690,198.72 × 5,121,129.92
  4. Step 4: Simplify right side
    9,195,510.92x = 64,988,156,355,737.70
  5. Step 5: Solve for x
    x = 64,988,156,355,737.70/9,195,510.92
  6. Step 6: Final answer
    x = 7,067,378.52

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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.