Home / 25,418,747.70-38,128,121.55-17,765,997.30

Finding the Fourth Proportional to 25,418,747.70, 38,128,121.55 and 17,765,997.30

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Solution

The fourth proportional to 25,418,747.70, 38,128,121.55 and 17,765,997.30 is: 26,648,995.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,418,747.70 : 38,128,121.55 = 17,765,997.30 : x
  2. Step 2: Convert to fraction form
    25,418,747.70/38,128,121.55 = 17,765,997.30/x
  3. Step 3: Cross multiply
    25,418,747.70x = 38,128,121.55 × 17,765,997.30
  4. Step 4: Simplify right side
    25,418,747.70x = 677,384,104,511,371.75
  5. Step 5: Solve for x
    x = 677,384,104,511,371.75/25,418,747.70
  6. Step 6: Final answer
    x = 26,648,995.95

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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.