Home / 5,178,874.64-7,147,272.64-2,856,221.54

Finding the Fourth Proportional to 5,178,874.64, 7,147,272.64 and 2,856,221.54

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Solution

The fourth proportional to 5,178,874.64, 7,147,272.64 and 2,856,221.54 is: 3,941,820.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178,874.64 : 7,147,272.64 = 2,856,221.54 : x
  2. Step 2: Convert to fraction form
    5,178,874.64/7,147,272.64 = 2,856,221.54/x
  3. Step 3: Cross multiply
    5,178,874.64x = 7,147,272.64 × 2,856,221.54
  4. Step 4: Simplify right side
    5,178,874.64x = 20,414,194,066,620.66
  5. Step 5: Solve for x
    x = 20,414,194,066,620.66/5,178,874.64
  6. Step 6: Final answer
    x = 3,941,820.47

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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.