Home / 12,567,778.78-18,851,640.30-3,345,753.54

Finding the Fourth Proportional to 12,567,778.78, 18,851,640.30 and 3,345,753.54

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Solution

The fourth proportional to 12,567,778.78, 18,851,640.30 and 3,345,753.54 is: 5,018,622.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,567,778.78 : 18,851,640.30 = 3,345,753.54 : x
  2. Step 2: Convert to fraction form
    12,567,778.78/18,851,640.30 = 3,345,753.54/x
  3. Step 3: Cross multiply
    12,567,778.78x = 18,851,640.30 × 3,345,753.54
  4. Step 4: Simplify right side
    12,567,778.78x = 63,072,942,268,531.66
  5. Step 5: Solve for x
    x = 63,072,942,268,531.66/12,567,778.78
  6. Step 6: Final answer
    x = 5,018,622.89

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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.