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Finding the Third Proportional to 18,555,687 and 38,384,208

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Solution

The third proportional to 18,555,687 and 38,384,208 is: 79,401,394.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,555,687 : 38,384,208 = 38,384,208 : x
  2. Step 2: Convert to fraction form
    18,555,687/38,384,208 = 38,384,208/x
  3. Step 3: Cross multiply
    18,555,687x = 38,384,208 × 38,384,208
  4. Step 4: Simplify right side
    18,555,687x = 1,473,347,423,787,264
  5. Step 5: Solve for x
    x = 1,473,347,423,787,264/18,555,687
  6. Step 6: Final answer
    x = 79,401,394.50

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.