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Finding the Third Proportional to 3,318,416 and 7,091,728

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Solution

The third proportional to 3,318,416 and 7,091,728 is: 15,155,606.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318,416 : 7,091,728 = 7,091,728 : x
  2. Step 2: Convert to fraction form
    3,318,416/7,091,728 = 7,091,728/x
  3. Step 3: Cross multiply
    3,318,416x = 7,091,728 × 7,091,728
  4. Step 4: Simplify right side
    3,318,416x = 50,292,606,025,984
  5. Step 5: Solve for x
    x = 50,292,606,025,984/3,318,416
  6. Step 6: Final answer
    x = 15,155,606.18

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.