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Finding the Third Proportional to 8,642,727 and 18,566,490

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Solution

The third proportional to 8,642,727 and 18,566,490 is: 39,884,928.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,642,727 : 18,566,490 = 18,566,490 : x
  2. Step 2: Convert to fraction form
    8,642,727/18,566,490 = 18,566,490/x
  3. Step 3: Cross multiply
    8,642,727x = 18,566,490 × 18,566,490
  4. Step 4: Simplify right side
    8,642,727x = 344,714,550,920,100
  5. Step 5: Solve for x
    x = 344,714,550,920,100/8,642,727
  6. Step 6: Final answer
    x = 39,884,928.79

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.