Home / 13,202,934.32-18,219,777.84-7,321,619.42

Finding the Fourth Proportional to 13,202,934.32, 18,219,777.84 and 7,321,619.42

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Solution

The fourth proportional to 13,202,934.32, 18,219,777.84 and 7,321,619.42 is: 10,103,684.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,202,934.32 : 18,219,777.84 = 7,321,619.42 : x
  2. Step 2: Convert to fraction form
    13,202,934.32/18,219,777.84 = 7,321,619.42/x
  3. Step 3: Cross multiply
    13,202,934.32x = 18,219,777.84 × 7,321,619.42
  4. Step 4: Simplify right side
    13,202,934.32x = 133,398,279,261,429.66
  5. Step 5: Solve for x
    x = 133,398,279,261,429.66/13,202,934.32
  6. Step 6: Final answer
    x = 10,103,684.23

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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.