Home / 10,987,297.38-15,161,377.91-6,342,578.78

Finding the Fourth Proportional to 10,987,297.38, 15,161,377.91 and 6,342,578.78

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Solution

The fourth proportional to 10,987,297.38, 15,161,377.91 and 6,342,578.78 is: 8,752,128.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987,297.38 : 15,161,377.91 = 6,342,578.78 : x
  2. Step 2: Convert to fraction form
    10,987,297.38/15,161,377.91 = 6,342,578.78/x
  3. Step 3: Cross multiply
    10,987,297.38x = 15,161,377.91 × 6,342,578.78
  4. Step 4: Simplify right side
    10,987,297.38x = 96,162,233,764,111.56
  5. Step 5: Solve for x
    x = 96,162,233,764,111.56/10,987,297.38
  6. Step 6: Final answer
    x = 8,752,128.06

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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.