Home / 20,229,712.80-30,344,569.20-19,757,320.80

Finding the Fourth Proportional to 20,229,712.80, 30,344,569.20 and 19,757,320.80

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Solution

The fourth proportional to 20,229,712.80, 30,344,569.20 and 19,757,320.80 is: 29,635,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229,712.80 : 30,344,569.20 = 19,757,320.80 : x
  2. Step 2: Convert to fraction form
    20,229,712.80/30,344,569.20 = 19,757,320.80/x
  3. Step 3: Cross multiply
    20,229,712.80x = 30,344,569.20 × 19,757,320.80
  4. Step 4: Simplify right side
    20,229,712.80x = 599,527,388,222,199.38
  5. Step 5: Solve for x
    x = 599,527,388,222,199.38/20,229,712.80
  6. Step 6: Final answer
    x = 29,635,981.20

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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.