Home / 20,386,096.46-28,132,816.97-11,218,739.21

Finding the Fourth Proportional to 20,386,096.46, 28,132,816.97 and 11,218,739.21

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Solution

The fourth proportional to 20,386,096.46, 28,132,816.97 and 11,218,739.21 is: 15,481,862.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386,096.46 : 28,132,816.97 = 11,218,739.21 : x
  2. Step 2: Convert to fraction form
    20,386,096.46/28,132,816.97 = 11,218,739.21/x
  3. Step 3: Cross multiply
    20,386,096.46x = 28,132,816.97 × 11,218,739.21
  4. Step 4: Simplify right side
    20,386,096.46x = 315,614,736,829,092.38
  5. Step 5: Solve for x
    x = 315,614,736,829,092.38/20,386,096.46
  6. Step 6: Final answer
    x = 15,481,862.23

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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.