Home / 15,192,988.83-20,966,321.98-8,223,665

Finding the Fourth Proportional to 15,192,988.83, 20,966,321.98 and 8,223,665

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Solution

The fourth proportional to 15,192,988.83, 20,966,321.98 and 8,223,665 is: 11,348,656.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,192,988.83 : 20,966,321.98 = 8,223,665 : x
  2. Step 2: Convert to fraction form
    15,192,988.83/20,966,321.98 = 8,223,665/x
  3. Step 3: Cross multiply
    15,192,988.83x = 20,966,321.98 × 8,223,665
  4. Step 4: Simplify right side
    15,192,988.83x = 172,420,008,245,656.72
  5. Step 5: Solve for x
    x = 172,420,008,245,656.72/15,192,988.83
  6. Step 6: Final answer
    x = 11,348,656.29

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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.