Home / 25,925,935.60-38,864,020.20-20,165,474.80

Finding the Fourth Proportional to 25,925,935.60, 38,864,020.20 and 20,165,474.80

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Solution

The fourth proportional to 25,925,935.60, 38,864,020.20 and 20,165,474.80 is: 30,228,857.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,925,935.60 : 38,864,020.20 = 20,165,474.80 : x
  2. Step 2: Convert to fraction form
    25,925,935.60/38,864,020.20 = 20,165,474.80/x
  3. Step 3: Cross multiply
    25,925,935.60x = 38,864,020.20 × 20,165,474.80
  4. Step 4: Simplify right side
    25,925,935.60x = 783,711,419,969,791
  5. Step 5: Solve for x
    x = 783,711,419,969,791/25,925,935.60
  6. Step 6: Final answer
    x = 30,228,857.78

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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.