Home / 20,238,467.23-27,929,121.49-11,071,109.98

Finding the Fourth Proportional to 20,238,467.23, 27,929,121.49 and 11,071,109.98

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Solution

The fourth proportional to 20,238,467.23, 27,929,121.49 and 11,071,109.98 is: 15,278,151.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238,467.23 : 27,929,121.49 = 11,071,109.98 : x
  2. Step 2: Convert to fraction form
    20,238,467.23/27,929,121.49 = 11,071,109.98/x
  3. Step 3: Cross multiply
    20,238,467.23x = 27,929,121.49 × 11,071,109.98
  4. Step 4: Simplify right side
    20,238,467.23x = 309,206,375,660,571.44
  5. Step 5: Solve for x
    x = 309,206,375,660,571.44/20,238,467.23
  6. Step 6: Final answer
    x = 15,278,151.86

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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.