Home / 6,990,736.78-9,647,516.06-3,893,260.12

Finding the Fourth Proportional to 6,990,736.78, 9,647,516.06 and 3,893,260.12

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Solution

The fourth proportional to 6,990,736.78, 9,647,516.06 and 3,893,260.12 is: 5,372,865.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990,736.78 : 9,647,516.06 = 3,893,260.12 : x
  2. Step 2: Convert to fraction form
    6,990,736.78/9,647,516.06 = 3,893,260.12/x
  3. Step 3: Cross multiply
    6,990,736.78x = 9,647,516.06 × 3,893,260.12
  4. Step 4: Simplify right side
    6,990,736.78x = 37,560,289,540,650.34
  5. Step 5: Solve for x
    x = 37,560,289,540,650.34/6,990,736.78
  6. Step 6: Final answer
    x = 5,372,865.66

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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.