Home / 18,231,864.80-25,159,769.36-9,972,164.32

Finding the Fourth Proportional to 18,231,864.80, 25,159,769.36 and 9,972,164.32

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Solution

The fourth proportional to 18,231,864.80, 25,159,769.36 and 9,972,164.32 is: 13,761,475.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231,864.80 : 25,159,769.36 = 9,972,164.32 : x
  2. Step 2: Convert to fraction form
    18,231,864.80/25,159,769.36 = 9,972,164.32/x
  3. Step 3: Cross multiply
    18,231,864.80x = 25,159,769.36 × 9,972,164.32
  4. Step 4: Simplify right side
    18,231,864.80x = 250,897,354,311,221.25
  5. Step 5: Solve for x
    x = 250,897,354,311,221.25/18,231,864.80
  6. Step 6: Final answer
    x = 13,761,475.15

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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.