Home / 81,556,429.50-123,519,178.13

Finding the Third Proportional to 81,556,429.50 and 123,519,178.13

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Solution

The third proportional to 81,556,429.50 and 123,519,178.13 is: 187,072,772.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,556,429.50 : 123,519,178.13 = 123,519,178.13 : x
  2. Step 2: Convert to fraction form
    81,556,429.50/123,519,178.13 = 123,519,178.13/x
  3. Step 3: Cross multiply
    81,556,429.50x = 123,519,178.13 × 123,519,178.13
  4. Step 4: Simplify right side
    81,556,429.50x = 15,256,987,364,675,478
  5. Step 5: Solve for x
    x = 15,256,987,364,675,478/81,556,429.50
  6. Step 6: Final answer
    x = 187,072,772.29

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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.