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Finding the Third Proportional to 10,912,074 and 15,172,368

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Solution

The third proportional to 10,912,074 and 15,172,368 is: 21,095,966.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912,074 : 15,172,368 = 15,172,368 : x
  2. Step 2: Convert to fraction form
    10,912,074/15,172,368 = 15,172,368/x
  3. Step 3: Cross multiply
    10,912,074x = 15,172,368 × 15,172,368
  4. Step 4: Simplify right side
    10,912,074x = 230,200,750,727,424
  5. Step 5: Solve for x
    x = 230,200,750,727,424/10,912,074
  6. Step 6: Final answer
    x = 21,095,966.79

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.