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Finding the Third Proportional to 5,278,499 and 8,160,149

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Solution

The third proportional to 5,278,499 and 8,160,149 is: 12,614,955.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278,499 : 8,160,149 = 8,160,149 : x
  2. Step 2: Convert to fraction form
    5,278,499/8,160,149 = 8,160,149/x
  3. Step 3: Cross multiply
    5,278,499x = 8,160,149 × 8,160,149
  4. Step 4: Simplify right side
    5,278,499x = 66,588,031,702,201
  5. Step 5: Solve for x
    x = 66,588,031,702,201/5,278,499
  6. Step 6: Final answer
    x = 12,614,955.82

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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.