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Finding the Third Proportional to 8,609,390 and 18,898,192

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Solution

The third proportional to 8,609,390 and 18,898,192 is: 41,482,806.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,609,390 : 18,898,192 = 18,898,192 : x
  2. Step 2: Convert to fraction form
    8,609,390/18,898,192 = 18,898,192/x
  3. Step 3: Cross multiply
    8,609,390x = 18,898,192 × 18,898,192
  4. Step 4: Simplify right side
    8,609,390x = 357,141,660,868,864
  5. Step 5: Solve for x
    x = 357,141,660,868,864/8,609,390
  6. Step 6: Final answer
    x = 41,482,806.66

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.