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Finding the Third Proportional to 10,912,082 and 15,172,380

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Solution

The third proportional to 10,912,082 and 15,172,380 is: 21,095,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912,082 : 15,172,380 = 15,172,380 : x
  2. Step 2: Convert to fraction form
    10,912,082/15,172,380 = 15,172,380/x
  3. Step 3: Cross multiply
    10,912,082x = 15,172,380 × 15,172,380
  4. Step 4: Simplify right side
    10,912,082x = 230,201,114,864,400
  5. Step 5: Solve for x
    x = 230,201,114,864,400/10,912,082
  6. Step 6: Final answer
    x = 21,095,984.70

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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.