Home / 18,900,902.40-28,332,691.20-9,308,428.80

Finding the Fourth Proportional to 18,900,902.40, 28,332,691.20 and 9,308,428.80

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Solution

The fourth proportional to 18,900,902.40, 28,332,691.20 and 9,308,428.80 is: 13,953,452.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,900,902.40 : 28,332,691.20 = 9,308,428.80 : x
  2. Step 2: Convert to fraction form
    18,900,902.40/28,332,691.20 = 9,308,428.80/x
  3. Step 3: Cross multiply
    18,900,902.40x = 28,332,691.20 × 9,308,428.80
  4. Step 4: Simplify right side
    18,900,902.40x = 263,732,838,747,586.56
  5. Step 5: Solve for x
    x = 263,732,838,747,586.56/18,900,902.40
  6. Step 6: Final answer
    x = 13,953,452.23

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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.