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Finding the Third Proportional to 8,680,899 and 18,856,212

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Solution

The third proportional to 8,680,899 and 18,856,212 is: 40,958,514.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680,899 : 18,856,212 = 18,856,212 : x
  2. Step 2: Convert to fraction form
    8,680,899/18,856,212 = 18,856,212/x
  3. Step 3: Cross multiply
    8,680,899x = 18,856,212 × 18,856,212
  4. Step 4: Simplify right side
    8,680,899x = 355,556,730,988,944
  5. Step 5: Solve for x
    x = 355,556,730,988,944/8,680,899
  6. Step 6: Final answer
    x = 40,958,514.89

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.