Home / 12,259,122.89-16,917,589.52-7,105,473.78

Finding the Fourth Proportional to 12,259,122.89, 16,917,589.52 and 7,105,473.78

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Solution

The fourth proportional to 12,259,122.89, 16,917,589.52 and 7,105,473.78 is: 9,805,553.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,259,122.89 : 16,917,589.52 = 7,105,473.78 : x
  2. Step 2: Convert to fraction form
    12,259,122.89/16,917,589.52 = 7,105,473.78/x
  3. Step 3: Cross multiply
    12,259,122.89x = 16,917,589.52 × 7,105,473.78
  4. Step 4: Simplify right side
    12,259,122.89x = 120,207,488,719,635.42
  5. Step 5: Solve for x
    x = 120,207,488,719,635.42/12,259,122.89
  6. Step 6: Final answer
    x = 9,805,553.78

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1.5x scale

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.