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Finding the Third Proportional to 8,718,408 and 11,967,993

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Solution

The third proportional to 8,718,408 and 11,967,993 is: 16,428,785.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718,408 : 11,967,993 = 11,967,993 : x
  2. Step 2: Convert to fraction form
    8,718,408/11,967,993 = 11,967,993/x
  3. Step 3: Cross multiply
    8,718,408x = 11,967,993 × 11,967,993
  4. Step 4: Simplify right side
    8,718,408x = 143,232,856,448,049
  5. Step 5: Solve for x
    x = 143,232,856,448,049/8,718,408
  6. Step 6: Final answer
    x = 16,428,785.67

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.