Home / 5,178,874.22-7,147,271.93-2,856,221.02

Finding the Fourth Proportional to 5,178,874.22, 7,147,271.93 and 2,856,221.02

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Solution

The fourth proportional to 5,178,874.22, 7,147,271.93 and 2,856,221.02 is: 3,941,819.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178,874.22 : 7,147,271.93 = 2,856,221.02 : x
  2. Step 2: Convert to fraction form
    5,178,874.22/7,147,271.93 = 2,856,221.02/x
  3. Step 3: Cross multiply
    5,178,874.22x = 7,147,271.93 × 2,856,221.02
  4. Step 4: Simplify right side
    5,178,874.22x = 20,414,188,316,774.95
  5. Step 5: Solve for x
    x = 20,414,188,316,774.95/5,178,874.22
  6. Step 6: Final answer
    x = 3,941,819.68

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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.