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Finding the Third Proportional to 3,318,412 and 7,091,720

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Solution

The third proportional to 3,318,412 and 7,091,720 is: 15,155,590.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318,412 : 7,091,720 = 7,091,720 : x
  2. Step 2: Convert to fraction form
    3,318,412/7,091,720 = 7,091,720/x
  3. Step 3: Cross multiply
    3,318,412x = 7,091,720 × 7,091,720
  4. Step 4: Simplify right side
    3,318,412x = 50,292,492,558,400
  5. Step 5: Solve for x
    x = 50,292,492,558,400/3,318,412
  6. Step 6: Final answer
    x = 15,155,590.25

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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.