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Finding the Third Proportional to 18,865,170 and 40,419,864

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Solution

The third proportional to 18,865,170 and 40,419,864 is: 86,602,209.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,865,170 : 40,419,864 = 40,419,864 : x
  2. Step 2: Convert to fraction form
    18,865,170/40,419,864 = 40,419,864/x
  3. Step 3: Cross multiply
    18,865,170x = 40,419,864 × 40,419,864
  4. Step 4: Simplify right side
    18,865,170x = 1,633,765,405,778,496
  5. Step 5: Solve for x
    x = 1,633,765,405,778,496/18,865,170
  6. Step 6: Final answer
    x = 86,602,209.56

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These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.