Home / 15,192,991.83-20,966,326.12-8,223,668

Finding the Fourth Proportional to 15,192,991.83, 20,966,326.12 and 8,223,668

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Solution

The fourth proportional to 15,192,991.83, 20,966,326.12 and 8,223,668 is: 11,348,660.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,192,991.83 : 20,966,326.12 = 8,223,668 : x
  2. Step 2: Convert to fraction form
    15,192,991.83/20,966,326.12 = 8,223,668/x
  3. Step 3: Cross multiply
    15,192,991.83x = 20,966,326.12 × 8,223,668
  4. Step 4: Simplify right side
    15,192,991.83x = 172,420,105,190,608.16
  5. Step 5: Solve for x
    x = 172,420,105,190,608.16/15,192,991.83
  6. Step 6: Final answer
    x = 11,348,660.43

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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.