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Finding the Third Proportional to 31,265,668 and 68,892,221

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Solution

The third proportional to 31,265,668 and 68,892,221 is: 151,800,310.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,265,668 : 68,892,221 = 68,892,221 : x
  2. Step 2: Convert to fraction form
    31,265,668/68,892,221 = 68,892,221/x
  3. Step 3: Cross multiply
    31,265,668x = 68,892,221 × 68,892,221
  4. Step 4: Simplify right side
    31,265,668x = 4,746,138,114,312,841
  5. Step 5: Solve for x
    x = 4,746,138,114,312,841/31,265,668
  6. Step 6: Final answer
    x = 151,800,310.63

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.