Home / 13,330,545.68-18,396,116.52-7,218,972.56

Finding the Fourth Proportional to 13,330,545.68, 18,396,116.52 and 7,218,972.56

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Solution

The fourth proportional to 13,330,545.68, 18,396,116.52 and 7,218,972.56 is: 9,962,162.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330,545.68 : 18,396,116.52 = 7,218,972.56 : x
  2. Step 2: Convert to fraction form
    13,330,545.68/18,396,116.52 = 7,218,972.56/x
  3. Step 3: Cross multiply
    13,330,545.68x = 18,396,116.52 × 7,218,972.56
  4. Step 4: Simplify right side
    13,330,545.68x = 132,801,060,368,442.69
  5. Step 5: Solve for x
    x = 132,801,060,368,442.69/13,330,545.68
  6. Step 6: Final answer
    x = 9,962,162.36

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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.