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Finding the Third Proportional to 10,279,890 and 15,421,797

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Solution

The third proportional to 10,279,890 and 15,421,797 is: 23,135,638.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279,890 : 15,421,797 = 15,421,797 : x
  2. Step 2: Convert to fraction form
    10,279,890/15,421,797 = 15,421,797/x
  3. Step 3: Cross multiply
    10,279,890x = 15,421,797 × 15,421,797
  4. Step 4: Simplify right side
    10,279,890x = 237,831,822,709,209
  5. Step 5: Solve for x
    x = 237,831,822,709,209/10,279,890
  6. Step 6: Final answer
    x = 23,135,638.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.