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Finding the Third Proportional to 10,992,388 and 15,189,126

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Solution

The third proportional to 10,992,388 and 15,189,126 is: 20,988,119.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992,388 : 15,189,126 = 15,189,126 : x
  2. Step 2: Convert to fraction form
    10,992,388/15,189,126 = 15,189,126/x
  3. Step 3: Cross multiply
    10,992,388x = 15,189,126 × 15,189,126
  4. Step 4: Simplify right side
    10,992,388x = 230,709,548,643,876
  5. Step 5: Solve for x
    x = 230,709,548,643,876/10,992,388
  6. Step 6: Final answer
    x = 20,988,119.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.