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Finding the Third Proportional to 18,440,508 and 40,218,319

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Solution

The third proportional to 18,440,508 and 40,218,319 is: 87,715,218.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,440,508 : 40,218,319 = 40,218,319 : x
  2. Step 2: Convert to fraction form
    18,440,508/40,218,319 = 40,218,319/x
  3. Step 3: Cross multiply
    18,440,508x = 40,218,319 × 40,218,319
  4. Step 4: Simplify right side
    18,440,508x = 1,617,513,183,185,761
  5. Step 5: Solve for x
    x = 1,617,513,183,185,761/18,440,508
  6. Step 6: Final answer
    x = 87,715,218.21

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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.