Home / 269,040,805.20-403,561,207.80-74,982,171.60

Finding the Fourth Proportional to 269,040,805.20, 403,561,207.80 and 74,982,171.60

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Solution

The fourth proportional to 269,040,805.20, 403,561,207.80 and 74,982,171.60 is: 112,473,257.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,040,805.20 : 403,561,207.80 = 74,982,171.60 : x
  2. Step 2: Convert to fraction form
    269,040,805.20/403,561,207.80 = 74,982,171.60/x
  3. Step 3: Cross multiply
    269,040,805.20x = 403,561,207.80 × 74,982,171.60
  4. Step 4: Simplify right side
    269,040,805.20x = 30,259,895,734,362,856
  5. Step 5: Solve for x
    x = 30,259,895,734,362,856/269,040,805.20
  6. Step 6: Final answer
    x = 112,473,257.40

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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.