Home / 1,311,854,769.68-1,967,785,890.17-379,253,537.91

Finding the Fourth Proportional to 1,311,854,769.68, 1,967,785,890.17 and 379,253,537.91

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Solution

The fourth proportional to 1,311,854,769.68, 1,967,785,890.17 and 379,253,537.91 is: 568,881,386.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,854,769.68 : 1,967,785,890.17 = 379,253,537.91 : x
  2. Step 2: Convert to fraction form
    1,311,854,769.68/1,967,785,890.17 = 379,253,537.91/x
  3. Step 3: Cross multiply
    1,311,854,769.68x = 1,967,785,890.17 × 379,253,537.91
  4. Step 4: Simplify right side
    1,311,854,769.68x = 746,289,760,694,454,912
  5. Step 5: Solve for x
    x = 746,289,760,694,454,912/1,311,854,769.68
  6. Step 6: Final answer
    x = 568,881,386.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.