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Finding the Third Proportional to 15,167,678 and 21,461,799

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Solution

The third proportional to 15,167,678 and 21,461,799 is: 30,367,787.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,167,678 : 21,461,799 = 21,461,799 : x
  2. Step 2: Convert to fraction form
    15,167,678/21,461,799 = 21,461,799/x
  3. Step 3: Cross multiply
    15,167,678x = 21,461,799 × 21,461,799
  4. Step 4: Simplify right side
    15,167,678x = 460,608,816,316,401
  5. Step 5: Solve for x
    x = 460,608,816,316,401/15,167,678
  6. Step 6: Final answer
    x = 30,367,787.10

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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.