Home / 3,865,998.90-5,335,144.56-2,123,741.70

Finding the Fourth Proportional to 3,865,998.90, 5,335,144.56 and 2,123,741.70

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Solution

The fourth proportional to 3,865,998.90, 5,335,144.56 and 2,123,741.70 is: 2,930,799.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865,998.90 : 5,335,144.56 = 2,123,741.70 : x
  2. Step 2: Convert to fraction form
    3,865,998.90/5,335,144.56 = 2,123,741.70/x
  3. Step 3: Cross multiply
    3,865,998.90x = 5,335,144.56 × 2,123,741.70
  4. Step 4: Simplify right side
    3,865,998.90x = 11,330,468,977,600.15
  5. Step 5: Solve for x
    x = 11,330,468,977,600.15/3,865,998.90
  6. Step 6: Final answer
    x = 2,930,799.85

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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.