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Finding the Third Proportional to 3,149,302.78 and 6,908,778.56

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Solution

The third proportional to 3,149,302.78 and 6,908,778.56 is: 15,156,123.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149,302.78 : 6,908,778.56 = 6,908,778.56 : x
  2. Step 2: Convert to fraction form
    3,149,302.78/6,908,778.56 = 6,908,778.56/x
  3. Step 3: Cross multiply
    3,149,302.78x = 6,908,778.56 × 6,908,778.56
  4. Step 4: Simplify right side
    3,149,302.78x = 47,731,221,225,659.56
  5. Step 5: Solve for x
    x = 47,731,221,225,659.56/3,149,302.78
  6. Step 6: Final answer
    x = 15,156,123.29

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.