Home / 15,187,816.62-20,959,242.48-8,218,494.23

Finding the Fourth Proportional to 15,187,816.62, 20,959,242.48 and 8,218,494.23

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Solution

The fourth proportional to 15,187,816.62, 20,959,242.48 and 8,218,494.23 is: 11,341,552.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,187,816.62 : 20,959,242.48 = 8,218,494.23 : x
  2. Step 2: Convert to fraction form
    15,187,816.62/20,959,242.48 = 8,218,494.23/x
  3. Step 3: Cross multiply
    15,187,816.62x = 20,959,242.48 × 8,218,494.23
  4. Step 4: Simplify right side
    15,187,816.62x = 172,253,413,387,050.91
  5. Step 5: Solve for x
    x = 172,253,413,387,050.91/15,187,816.62
  6. Step 6: Final answer
    x = 11,341,552.09

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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.