Home / 3,143,739.60-4,718,907.72-2,786,199.12

Finding the Fourth Proportional to 3,143,739.60, 4,718,907.72 and 2,786,199.12

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Solution

The fourth proportional to 3,143,739.60, 4,718,907.72 and 2,786,199.12 is: 4,182,221.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143,739.60 : 4,718,907.72 = 2,786,199.12 : x
  2. Step 2: Convert to fraction form
    3,143,739.60/4,718,907.72 = 2,786,199.12/x
  3. Step 3: Cross multiply
    3,143,739.60x = 4,718,907.72 × 2,786,199.12
  4. Step 4: Simplify right side
    3,143,739.60x = 13,147,816,536,825.21
  5. Step 5: Solve for x
    x = 13,147,816,536,825.21/3,143,739.60
  6. Step 6: Final answer
    x = 4,182,221.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.