Home / 2,808,846,078.72-3,876,207,517.92-1,555,863,647.52

Finding the Fourth Proportional to 2,808,846,078.72, 3,876,207,517.92 and 1,555,863,647.52

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Solution

The fourth proportional to 2,808,846,078.72, 3,876,207,517.92 and 1,555,863,647.52 is: 2,147,091,794.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808,846,078.72 : 3,876,207,517.92 = 1,555,863,647.52 : x
  2. Step 2: Convert to fraction form
    2,808,846,078.72/3,876,207,517.92 = 1,555,863,647.52/x
  3. Step 3: Cross multiply
    2,808,846,078.72x = 3,876,207,517.92 × 1,555,863,647.52
  4. Step 4: Simplify right side
    2,808,846,078.72x = 6,030,850,367,375,457,280
  5. Step 5: Solve for x
    x = 6,030,850,367,375,457,280/2,808,846,078.72
  6. Step 6: Final answer
    x = 2,147,091,794.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.