Home / 5,178,884.61-7,147,286.39-2,856,231.51

Finding the Fourth Proportional to 5,178,884.61, 7,147,286.39 and 2,856,231.51

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Solution

The fourth proportional to 5,178,884.61, 7,147,286.39 and 2,856,231.51 is: 3,941,834.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178,884.61 : 7,147,286.39 = 2,856,231.51 : x
  2. Step 2: Convert to fraction form
    5,178,884.61/7,147,286.39 = 2,856,231.51/x
  3. Step 3: Cross multiply
    5,178,884.61x = 7,147,286.39 × 2,856,231.51
  4. Step 4: Simplify right side
    5,178,884.61x = 20,414,304,583,830.99
  5. Step 5: Solve for x
    x = 20,414,304,583,830.99/5,178,884.61
  6. Step 6: Final answer
    x = 3,941,834.22

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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.