Home / 7,192,545.60-9,925,732.80-3,929,390.40

Finding the Fourth Proportional to 7,192,545.60, 9,925,732.80 and 3,929,390.40

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Solution

The fourth proportional to 7,192,545.60, 9,925,732.80 and 3,929,390.40 is: 5,422,569.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,192,545.60 : 9,925,732.80 = 3,929,390.40 : x
  2. Step 2: Convert to fraction form
    7,192,545.60/9,925,732.80 = 3,929,390.40/x
  3. Step 3: Cross multiply
    7,192,545.60x = 9,925,732.80 × 3,929,390.40
  4. Step 4: Simplify right side
    7,192,545.60x = 39,002,079,177,285.12
  5. Step 5: Solve for x
    x = 39,002,079,177,285.12/7,192,545.60
  6. Step 6: Final answer
    x = 5,422,569.61

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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.