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Finding the Third Proportional to 7,769,295 and 12,187,728

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Solution

The third proportional to 7,769,295 and 12,187,728 is: 19,118,943.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769,295 : 12,187,728 = 12,187,728 : x
  2. Step 2: Convert to fraction form
    7,769,295/12,187,728 = 12,187,728/x
  3. Step 3: Cross multiply
    7,769,295x = 12,187,728 × 12,187,728
  4. Step 4: Simplify right side
    7,769,295x = 148,540,713,801,984
  5. Step 5: Solve for x
    x = 148,540,713,801,984/7,769,295
  6. Step 6: Final answer
    x = 19,118,943.71

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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.