Home / 5,178,874.61-7,147,272.60-2,856,221.52

Finding the Fourth Proportional to 5,178,874.61, 7,147,272.60 and 2,856,221.52

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Solution

The fourth proportional to 5,178,874.61, 7,147,272.60 and 2,856,221.52 is: 3,941,820.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178,874.61 : 7,147,272.60 = 2,856,221.52 : x
  2. Step 2: Convert to fraction form
    5,178,874.61/7,147,272.60 = 2,856,221.52/x
  3. Step 3: Cross multiply
    5,178,874.61x = 7,147,272.60 × 2,856,221.52
  4. Step 4: Simplify right side
    5,178,874.61x = 20,414,193,809,426.35
  5. Step 5: Solve for x
    x = 20,414,193,809,426.35/5,178,874.61
  6. Step 6: Final answer
    x = 3,941,820.45

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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.