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Finding the Third Proportional to 7,824,200 and 11,968,860

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Solution

The third proportional to 7,824,200 and 11,968,860 is: 18,309,042.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,824,200 : 11,968,860 = 11,968,860 : x
  2. Step 2: Convert to fraction form
    7,824,200/11,968,860 = 11,968,860/x
  3. Step 3: Cross multiply
    7,824,200x = 11,968,860 × 11,968,860
  4. Step 4: Simplify right side
    7,824,200x = 143,253,609,699,600
  5. Step 5: Solve for x
    x = 143,253,609,699,600/7,824,200
  6. Step 6: Final answer
    x = 18,309,042.42

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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.