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Finding the Third Proportional to 6,405,515 and 13,992,981

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Solution

The third proportional to 6,405,515 and 13,992,981 is: 30,567,958.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,405,515 : 13,992,981 = 13,992,981 : x
  2. Step 2: Convert to fraction form
    6,405,515/13,992,981 = 13,992,981/x
  3. Step 3: Cross multiply
    6,405,515x = 13,992,981 × 13,992,981
  4. Step 4: Simplify right side
    6,405,515x = 195,803,517,266,361
  5. Step 5: Solve for x
    x = 195,803,517,266,361/6,405,515
  6. Step 6: Final answer
    x = 30,567,958.59

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.