Home / 1,311,854,771.93-1,967,785,893.54-379,253,540.16

Finding the Fourth Proportional to 1,311,854,771.93, 1,967,785,893.54 and 379,253,540.16

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Solution

The fourth proportional to 1,311,854,771.93, 1,967,785,893.54 and 379,253,540.16 is: 568,881,390.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,854,771.93 : 1,967,785,893.54 = 379,253,540.16 : x
  2. Step 2: Convert to fraction form
    1,311,854,771.93/1,967,785,893.54 = 379,253,540.16/x
  3. Step 3: Cross multiply
    1,311,854,771.93x = 1,967,785,893.54 × 379,253,540.16
  4. Step 4: Simplify right side
    1,311,854,771.93x = 746,289,766,401,953,920
  5. Step 5: Solve for x
    x = 746,289,766,401,953,920/1,311,854,771.93
  6. Step 6: Final answer
    x = 568,881,390.21

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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.