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Finding the Third Proportional to 5,521,912 and 11,311,460

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Solution

The third proportional to 5,521,912 and 11,311,460 is: 23,171,163.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521,912 : 11,311,460 = 11,311,460 : x
  2. Step 2: Convert to fraction form
    5,521,912/11,311,460 = 11,311,460/x
  3. Step 3: Cross multiply
    5,521,912x = 11,311,460 × 11,311,460
  4. Step 4: Simplify right side
    5,521,912x = 127,949,127,331,600
  5. Step 5: Solve for x
    x = 127,949,127,331,600/5,521,912
  6. Step 6: Final answer
    x = 23,171,163.78

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.