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Finding the Third Proportional to 8,536,712 and 13,021,872

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Solution

The third proportional to 8,536,712 and 13,021,872 is: 19,863,520.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,536,712 : 13,021,872 = 13,021,872 : x
  2. Step 2: Convert to fraction form
    8,536,712/13,021,872 = 13,021,872/x
  3. Step 3: Cross multiply
    8,536,712x = 13,021,872 × 13,021,872
  4. Step 4: Simplify right side
    8,536,712x = 169,569,150,384,384
  5. Step 5: Solve for x
    x = 169,569,150,384,384/8,536,712
  6. Step 6: Final answer
    x = 19,863,520.10

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.