Home / 15,187,817.62-20,959,243.86-8,218,495.23

Finding the Fourth Proportional to 15,187,817.62, 20,959,243.86 and 8,218,495.23

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Solution

The fourth proportional to 15,187,817.62, 20,959,243.86 and 8,218,495.23 is: 11,341,553.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,187,817.62 : 20,959,243.86 = 8,218,495.23 : x
  2. Step 2: Convert to fraction form
    15,187,817.62/20,959,243.86 = 8,218,495.23/x
  3. Step 3: Cross multiply
    15,187,817.62x = 20,959,243.86 × 8,218,495.23
  4. Step 4: Simplify right side
    15,187,817.62x = 172,253,445,687,816.78
  5. Step 5: Solve for x
    x = 172,253,445,687,816.78/15,187,817.62
  6. Step 6: Final answer
    x = 11,341,553.47

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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.