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Finding the Third Proportional to 18,397,236 and 38,701,080

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Solution

The third proportional to 18,397,236 and 38,701,080 is: 81,412,968.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,397,236 : 38,701,080 = 38,701,080 : x
  2. Step 2: Convert to fraction form
    18,397,236/38,701,080 = 38,701,080/x
  3. Step 3: Cross multiply
    18,397,236x = 38,701,080 × 38,701,080
  4. Step 4: Simplify right side
    18,397,236x = 1,497,773,593,166,400
  5. Step 5: Solve for x
    x = 1,497,773,593,166,400/18,397,236
  6. Step 6: Final answer
    x = 81,412,968.40

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.