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Finding the Third Proportional to 15,206,517 and 31,490,921

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Solution

The third proportional to 15,206,517 and 31,490,921 is: 65,214,020.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,206,517 : 31,490,921 = 31,490,921 : x
  2. Step 2: Convert to fraction form
    15,206,517/31,490,921 = 31,490,921/x
  3. Step 3: Cross multiply
    15,206,517x = 31,490,921 × 31,490,921
  4. Step 4: Simplify right side
    15,206,517x = 991,678,105,428,241
  5. Step 5: Solve for x
    x = 991,678,105,428,241/15,206,517
  6. Step 6: Final answer
    x = 65,214,020.11

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.