Home / 3,131,469.24-4,321,533.93-2,987,980.17

Finding the Fourth Proportional to 3,131,469.24, 4,321,533.93 and 2,987,980.17

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Solution

The fourth proportional to 3,131,469.24, 4,321,533.93 and 2,987,980.17 is: 4,123,514.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131,469.24 : 4,321,533.93 = 2,987,980.17 : x
  2. Step 2: Convert to fraction form
    3,131,469.24/4,321,533.93 = 2,987,980.17/x
  3. Step 3: Cross multiply
    3,131,469.24x = 4,321,533.93 × 2,987,980.17
  4. Step 4: Simplify right side
    3,131,469.24x = 12,912,657,686,822.17
  5. Step 5: Solve for x
    x = 12,912,657,686,822.17/3,131,469.24
  6. Step 6: Final answer
    x = 4,123,514.14

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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.