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Finding the Third Proportional to 18,397,971 and 40,017,366

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Solution

The third proportional to 18,397,971 and 40,017,366 is: 87,041,640.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,397,971 : 40,017,366 = 40,017,366 : x
  2. Step 2: Convert to fraction form
    18,397,971/40,017,366 = 40,017,366/x
  3. Step 3: Cross multiply
    18,397,971x = 40,017,366 × 40,017,366
  4. Step 4: Simplify right side
    18,397,971x = 1,601,389,581,577,956
  5. Step 5: Solve for x
    x = 1,601,389,581,577,956/18,397,971
  6. Step 6: Final answer
    x = 87,041,640.71

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.