Home / 15,511,016.88-21,399,662.70-8,981,082

Finding the Fourth Proportional to 15,511,016.88, 21,399,662.70 and 8,981,082

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Solution

The fourth proportional to 15,511,016.88, 21,399,662.70 and 8,981,082 is: 12,390,685.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,511,016.88 : 21,399,662.70 = 8,981,082 : x
  2. Step 2: Convert to fraction form
    15,511,016.88/21,399,662.70 = 8,981,082/x
  3. Step 3: Cross multiply
    15,511,016.88x = 21,399,662.70 × 8,981,082
  4. Step 4: Simplify right side
    15,511,016.88x = 192,192,125,481,041.41
  5. Step 5: Solve for x
    x = 192,192,125,481,041.41/15,511,016.88
  6. Step 6: Final answer
    x = 12,390,685.08

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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.