Home / 20,331,098.25-28,057,112.42-11,163,937.83

Finding the Fourth Proportional to 20,331,098.25, 28,057,112.42 and 11,163,937.83

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Solution

The fourth proportional to 20,331,098.25, 28,057,112.42 and 11,163,937.83 is: 15,406,342.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,331,098.25 : 28,057,112.42 = 11,163,937.83 : x
  2. Step 2: Convert to fraction form
    20,331,098.25/28,057,112.42 = 11,163,937.83/x
  3. Step 3: Cross multiply
    20,331,098.25x = 28,057,112.42 × 11,163,937.83
  4. Step 4: Simplify right side
    20,331,098.25x = 313,227,858,690,381.12
  5. Step 5: Solve for x
    x = 313,227,858,690,381.12/20,331,098.25
  6. Step 6: Final answer
    x = 15,406,342.29

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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.