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Finding the Third Proportional to 8,719,486 and 18,771,575

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Solution

The third proportional to 8,719,486 and 18,771,575 is: 40,412,018.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719,486 : 18,771,575 = 18,771,575 : x
  2. Step 2: Convert to fraction form
    8,719,486/18,771,575 = 18,771,575/x
  3. Step 3: Cross multiply
    8,719,486x = 18,771,575 × 18,771,575
  4. Step 4: Simplify right side
    8,719,486x = 352,372,027,980,625
  5. Step 5: Solve for x
    x = 352,372,027,980,625/8,719,486
  6. Step 6: Final answer
    x = 40,412,018.32

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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.