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Finding the Third Proportional to 5,487,476 and 11,817,780

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Solution

The third proportional to 5,487,476 and 11,817,780 is: 25,450,666.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487,476 : 11,817,780 = 11,817,780 : x
  2. Step 2: Convert to fraction form
    5,487,476/11,817,780 = 11,817,780/x
  3. Step 3: Cross multiply
    5,487,476x = 11,817,780 × 11,817,780
  4. Step 4: Simplify right side
    5,487,476x = 139,659,924,128,400
  5. Step 5: Solve for x
    x = 139,659,924,128,400/5,487,476
  6. Step 6: Final answer
    x = 25,450,666.96

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.