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Finding the Third Proportional to 117,639,769.50 and 177,972,658.50

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Solution

The third proportional to 117,639,769.50 and 177,972,658.50 is: 269,247,953.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,639,769.50 : 177,972,658.50 = 177,972,658.50 : x
  2. Step 2: Convert to fraction form
    117,639,769.50/177,972,658.50 = 177,972,658.50/x
  3. Step 3: Cross multiply
    117,639,769.50x = 177,972,658.50 × 177,972,658.50
  4. Step 4: Simplify right side
    117,639,769.50x = 31,674,267,173,557,624
  5. Step 5: Solve for x
    x = 31,674,267,173,557,624/117,639,769.50
  6. Step 6: Final answer
    x = 269,247,953.38

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.