Home / 15,128,115.66-20,876,756.13-8,252,548.52

Finding the Fourth Proportional to 15,128,115.66, 20,876,756.13 and 8,252,548.52

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Solution

The fourth proportional to 15,128,115.66, 20,876,756.13 and 8,252,548.52 is: 11,388,493.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128,115.66 : 20,876,756.13 = 8,252,548.52 : x
  2. Step 2: Convert to fraction form
    15,128,115.66/20,876,756.13 = 8,252,548.52/x
  3. Step 3: Cross multiply
    15,128,115.66x = 20,876,756.13 × 8,252,548.52
  4. Step 4: Simplify right side
    15,128,115.66x = 172,286,442,798,648.62
  5. Step 5: Solve for x
    x = 172,286,442,798,648.62/15,128,115.66
  6. Step 6: Final answer
    x = 11,388,493.23

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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.