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Finding the Third Proportional to 17,938,660 and 38,269,089

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Solution

The third proportional to 17,938,660 and 38,269,089 is: 81,640,611.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,938,660 : 38,269,089 = 38,269,089 : x
  2. Step 2: Convert to fraction form
    17,938,660/38,269,089 = 38,269,089/x
  3. Step 3: Cross multiply
    17,938,660x = 38,269,089 × 38,269,089
  4. Step 4: Simplify right side
    17,938,660x = 1,464,523,172,889,921
  5. Step 5: Solve for x
    x = 1,464,523,172,889,921/17,938,660
  6. Step 6: Final answer
    x = 81,640,611.56

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.