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Finding the Third Proportional to 6,420,718 and 13,372,880

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Solution

The third proportional to 6,420,718 and 13,372,880 is: 27,852,635.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420,718 : 13,372,880 = 13,372,880 : x
  2. Step 2: Convert to fraction form
    6,420,718/13,372,880 = 13,372,880/x
  3. Step 3: Cross multiply
    6,420,718x = 13,372,880 × 13,372,880
  4. Step 4: Simplify right side
    6,420,718x = 178,833,919,494,400
  5. Step 5: Solve for x
    x = 178,833,919,494,400/6,420,718
  6. Step 6: Final answer
    x = 27,852,635.72

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.