Home / 28,468,074.88-39,286,131.24-15,415,333.36

Finding the Fourth Proportional to 28,468,074.88, 39,286,131.24 and 15,415,333.36

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Solution

The fourth proportional to 28,468,074.88, 39,286,131.24 and 15,415,333.36 is: 21,273,261.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,468,074.88 : 39,286,131.24 = 15,415,333.36 : x
  2. Step 2: Convert to fraction form
    28,468,074.88/39,286,131.24 = 15,415,333.36/x
  3. Step 3: Cross multiply
    28,468,074.88x = 39,286,131.24 × 15,415,333.36
  4. Step 4: Simplify right side
    28,468,074.88x = 605,608,809,489,310.12
  5. Step 5: Solve for x
    x = 605,608,809,489,310.12/28,468,074.88
  6. Step 6: Final answer
    x = 21,273,261.79

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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.