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Finding the Third Proportional to 8,418,878 and 12,313,388

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Solution

The third proportional to 8,418,878 and 12,313,388 is: 18,009,469.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418,878 : 12,313,388 = 12,313,388 : x
  2. Step 2: Convert to fraction form
    8,418,878/12,313,388 = 12,313,388/x
  3. Step 3: Cross multiply
    8,418,878x = 12,313,388 × 12,313,388
  4. Step 4: Simplify right side
    8,418,878x = 151,619,524,038,544
  5. Step 5: Solve for x
    x = 151,619,524,038,544/8,418,878
  6. Step 6: Final answer
    x = 18,009,469.20

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.