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Finding the Third Proportional to 10,812,856 and 15,117,036

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Solution

The third proportional to 10,812,856 and 15,117,036 is: 21,134,543.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,812,856 : 15,117,036 = 15,117,036 : x
  2. Step 2: Convert to fraction form
    10,812,856/15,117,036 = 15,117,036/x
  3. Step 3: Cross multiply
    10,812,856x = 15,117,036 × 15,117,036
  4. Step 4: Simplify right side
    10,812,856x = 228,524,777,425,296
  5. Step 5: Solve for x
    x = 228,524,777,425,296/10,812,856
  6. Step 6: Final answer
    x = 21,134,543.68

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.