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Finding the Third Proportional to 15,167,661 and 21,461,775

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Solution

The third proportional to 15,167,661 and 21,461,775 is: 30,367,753.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,167,661 : 21,461,775 = 21,461,775 : x
  2. Step 2: Convert to fraction form
    15,167,661/21,461,775 = 21,461,775/x
  3. Step 3: Cross multiply
    15,167,661x = 21,461,775 × 21,461,775
  4. Step 4: Simplify right side
    15,167,661x = 460,607,786,150,625
  5. Step 5: Solve for x
    x = 460,607,786,150,625/15,167,661
  6. Step 6: Final answer
    x = 30,367,753.22

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.