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Finding the Third Proportional to 314,930,319 and 687,167,166

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Solution

The third proportional to 314,930,319 and 687,167,166 is: 1,499,375,212.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,930,319 : 687,167,166 = 687,167,166 : x
  2. Step 2: Convert to fraction form
    314,930,319/687,167,166 = 687,167,166/x
  3. Step 3: Cross multiply
    314,930,319x = 687,167,166 × 687,167,166
  4. Step 4: Simplify right side
    314,930,319x = 472,198,714,028,471,552
  5. Step 5: Solve for x
    x = 472,198,714,028,471,552/314,930,319
  6. Step 6: Final answer
    x = 1,499,375,212.68

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.