Home / 3,860,538.92-5,327,641.76-2,118,207.85

Finding the Fourth Proportional to 3,860,538.92, 5,327,641.76 and 2,118,207.85

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Solution

The fourth proportional to 3,860,538.92, 5,327,641.76 and 2,118,207.85 is: 2,923,180.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860,538.92 : 5,327,641.76 = 2,118,207.85 : x
  2. Step 2: Convert to fraction form
    3,860,538.92/5,327,641.76 = 2,118,207.85/x
  3. Step 3: Cross multiply
    3,860,538.92x = 5,327,641.76 × 2,118,207.85
  4. Step 4: Simplify right side
    3,860,538.92x = 11,285,052,582,278.73
  5. Step 5: Solve for x
    x = 11,285,052,582,278.73/3,860,538.92
  6. Step 6: Final answer
    x = 2,923,180.63

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Double scale
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1.5x scale

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.