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Finding the Third Proportional to 51,918,860 and 80,710,212

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Solution

The third proportional to 51,918,860 and 80,710,212 is: 125,467,668.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,918,860 : 80,710,212 = 80,710,212 : x
  2. Step 2: Convert to fraction form
    51,918,860/80,710,212 = 80,710,212/x
  3. Step 3: Cross multiply
    51,918,860x = 80,710,212 × 80,710,212
  4. Step 4: Simplify right side
    51,918,860x = 6,514,138,321,084,944
  5. Step 5: Solve for x
    x = 6,514,138,321,084,944/51,918,860
  6. Step 6: Final answer
    x = 125,467,668.61

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.