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Finding the Third Proportional to 59,287,288 and 128,469,836

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Solution

The third proportional to 59,287,288 and 128,469,836 is: 278,381,746.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,287,288 : 128,469,836 = 128,469,836 : x
  2. Step 2: Convert to fraction form
    59,287,288/128,469,836 = 128,469,836/x
  3. Step 3: Cross multiply
    59,287,288x = 128,469,836 × 128,469,836
  4. Step 4: Simplify right side
    59,287,288x = 16,504,498,761,866,896
  5. Step 5: Solve for x
    x = 16,504,498,761,866,896/59,287,288
  6. Step 6: Final answer
    x = 278,381,746.22

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.