Home / 13,067,979.73-18,034,249.40-7,187,862.54

Finding the Fourth Proportional to 13,067,979.73, 18,034,249.40 and 7,187,862.54

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Solution

The fourth proportional to 13,067,979.73, 18,034,249.40 and 7,187,862.54 is: 9,919,490.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,067,979.73 : 18,034,249.40 = 7,187,862.54 : x
  2. Step 2: Convert to fraction form
    13,067,979.73/18,034,249.40 = 7,187,862.54/x
  3. Step 3: Cross multiply
    13,067,979.73x = 18,034,249.40 × 7,187,862.54
  4. Step 4: Simplify right side
    13,067,979.73x = 129,627,705,798,352.83
  5. Step 5: Solve for x
    x = 129,627,705,798,352.83/13,067,979.73
  6. Step 6: Final answer
    x = 9,919,490.88

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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.