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Finding the Third Proportional to 7,699,822 and 11,991,678

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Solution

The third proportional to 7,699,822 and 11,991,678 is: 18,675,800.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,699,822 : 11,991,678 = 11,991,678 : x
  2. Step 2: Convert to fraction form
    7,699,822/11,991,678 = 11,991,678/x
  3. Step 3: Cross multiply
    7,699,822x = 11,991,678 × 11,991,678
  4. Step 4: Simplify right side
    7,699,822x = 143,800,341,255,684
  5. Step 5: Solve for x
    x = 143,800,341,255,684/7,699,822
  6. Step 6: Final answer
    x = 18,675,800.72

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.