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Finding the Third Proportional to 20,609,622 and 27,989,859

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Solution

The third proportional to 20,609,622 and 27,989,859 is: 38,012,934.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,609,622 : 27,989,859 = 27,989,859 : x
  2. Step 2: Convert to fraction form
    20,609,622/27,989,859 = 27,989,859/x
  3. Step 3: Cross multiply
    20,609,622x = 27,989,859 × 27,989,859
  4. Step 4: Simplify right side
    20,609,622x = 783,432,206,839,881
  5. Step 5: Solve for x
    x = 783,432,206,839,881/20,609,622
  6. Step 6: Final answer
    x = 38,012,934.29

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.