Home / 15,511,040.88-21,399,695.82-8,981,106

Finding the Fourth Proportional to 15,511,040.88, 21,399,695.82 and 8,981,106

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Solution

The fourth proportional to 15,511,040.88, 21,399,695.82 and 8,981,106 is: 12,390,718.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,511,040.88 : 21,399,695.82 = 8,981,106 : x
  2. Step 2: Convert to fraction form
    15,511,040.88/21,399,695.82 = 8,981,106/x
  3. Step 3: Cross multiply
    15,511,040.88x = 21,399,695.82 × 8,981,106
  4. Step 4: Simplify right side
    15,511,040.88x = 192,192,936,527,176.94
  5. Step 5: Solve for x
    x = 192,192,936,527,176.94/15,511,040.88
  6. Step 6: Final answer
    x = 12,390,718.20

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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.