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Finding the Third Proportional to 7,769,608 and 12,161,309

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Solution

The third proportional to 7,769,608 and 12,161,309 is: 19,035,379.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769,608 : 12,161,309 = 12,161,309 : x
  2. Step 2: Convert to fraction form
    7,769,608/12,161,309 = 12,161,309/x
  3. Step 3: Cross multiply
    7,769,608x = 12,161,309 × 12,161,309
  4. Step 4: Simplify right side
    7,769,608x = 147,897,436,593,481
  5. Step 5: Solve for x
    x = 147,897,436,593,481/7,769,608
  6. Step 6: Final answer
    x = 19,035,379.47

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.