Home / 3,131,468.99-4,321,533.59-2,987,979.92

Finding the Fourth Proportional to 3,131,468.99, 4,321,533.59 and 2,987,979.92

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Solution

The fourth proportional to 3,131,468.99, 4,321,533.59 and 2,987,979.92 is: 4,123,513.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131,468.99 : 4,321,533.59 = 2,987,979.92 : x
  2. Step 2: Convert to fraction form
    3,131,468.99/4,321,533.59 = 2,987,979.92/x
  3. Step 3: Cross multiply
    3,131,468.99x = 4,321,533.59 × 2,987,979.92
  4. Step 4: Simplify right side
    3,131,468.99x = 12,912,655,575,585.61
  5. Step 5: Solve for x
    x = 12,912,655,575,585.61/3,131,468.99
  6. Step 6: Final answer
    x = 4,123,513.79

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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.