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Finding the Third Proportional to 8,418,871 and 12,313,378

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Solution

The third proportional to 8,418,871 and 12,313,378 is: 18,009,454.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418,871 : 12,313,378 = 12,313,378 : x
  2. Step 2: Convert to fraction form
    8,418,871/12,313,378 = 12,313,378/x
  3. Step 3: Cross multiply
    8,418,871x = 12,313,378 × 12,313,378
  4. Step 4: Simplify right side
    8,418,871x = 151,619,277,770,884
  5. Step 5: Solve for x
    x = 151,619,277,770,884/8,418,871
  6. Step 6: Final answer
    x = 18,009,454.92

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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.