Home / 78,631,131.38-123,080,269.50

Finding the Third Proportional to 78,631,131.38 and 123,080,269.50

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Solution

The third proportional to 78,631,131.38 and 123,080,269.50 is: 192,655,917.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,631,131.38 : 123,080,269.50 = 123,080,269.50 : x
  2. Step 2: Convert to fraction form
    78,631,131.38/123,080,269.50 = 123,080,269.50/x
  3. Step 3: Cross multiply
    78,631,131.38x = 123,080,269.50 × 123,080,269.50
  4. Step 4: Simplify right side
    78,631,131.38x = 15,148,752,740,192,630
  5. Step 5: Solve for x
    x = 15,148,752,740,192,630/78,631,131.38
  6. Step 6: Final answer
    x = 192,655,917.26

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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.