Home / 1,311,854,799.78-1,967,785,935.18-379,253,567.91

Finding the Fourth Proportional to 1,311,854,799.78, 1,967,785,935.18 and 379,253,567.91

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Solution

The fourth proportional to 1,311,854,799.78, 1,967,785,935.18 and 379,253,567.91 is: 568,881,431.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,854,799.78 : 1,967,785,935.18 = 379,253,567.91 : x
  2. Step 2: Convert to fraction form
    1,311,854,799.78/1,967,785,935.18 = 379,253,567.91/x
  3. Step 3: Cross multiply
    1,311,854,799.78x = 1,967,785,935.18 × 379,253,567.91
  4. Step 4: Simplify right side
    1,311,854,799.78x = 746,289,836,800,131,072
  5. Step 5: Solve for x
    x = 746,289,836,800,131,072/1,311,854,799.78
  6. Step 6: Final answer
    x = 568,881,431.79

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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.