Home / 13,040,494.74-17,994,979.92-7,238,817.90

Finding the Fourth Proportional to 13,040,494.74, 17,994,979.92 and 7,238,817.90

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Solution

The fourth proportional to 13,040,494.74, 17,994,979.92 and 7,238,817.90 is: 9,989,067.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,040,494.74 : 17,994,979.92 = 7,238,817.90 : x
  2. Step 2: Convert to fraction form
    13,040,494.74/17,994,979.92 = 7,238,817.90/x
  3. Step 3: Cross multiply
    13,040,494.74x = 17,994,979.92 × 7,238,817.90
  4. Step 4: Simplify right side
    13,040,494.74x = 130,262,382,755,036.59
  5. Step 5: Solve for x
    x = 130,262,382,755,036.59/13,040,494.74
  6. Step 6: Final answer
    x = 9,989,067.54

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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.