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Finding the Third Proportional to 3,936,644 and 6,428,136

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Solution

The third proportional to 3,936,644 and 6,428,136 is: 10,496,486.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936,644 : 6,428,136 = 6,428,136 : x
  2. Step 2: Convert to fraction form
    3,936,644/6,428,136 = 6,428,136/x
  3. Step 3: Cross multiply
    3,936,644x = 6,428,136 × 6,428,136
  4. Step 4: Simplify right side
    3,936,644x = 41,320,932,434,496
  5. Step 5: Solve for x
    x = 41,320,932,434,496/3,936,644
  6. Step 6: Final answer
    x = 10,496,486.97

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.