Home / 2,881,816.43-3,977,286.84-2,787,181.29

Finding the Fourth Proportional to 2,881,816.43, 3,977,286.84 and 2,787,181.29

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Solution

The fourth proportional to 2,881,816.43, 3,977,286.84 and 2,787,181.29 is: 3,846,677.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881,816.43 : 3,977,286.84 = 2,787,181.29 : x
  2. Step 2: Convert to fraction form
    2,881,816.43/3,977,286.84 = 2,787,181.29/x
  3. Step 3: Cross multiply
    2,881,816.43x = 3,977,286.84 × 2,787,181.29
  4. Step 4: Simplify right side
    2,881,816.43x = 11,085,419,465,411.22
  5. Step 5: Solve for x
    x = 11,085,419,465,411.22/2,881,816.43
  6. Step 6: Final answer
    x = 3,846,677.87

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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.