Home / 28,790,436.72-43,185,655.20-9,621,193.78

Finding the Fourth Proportional to 28,790,436.72, 43,185,655.20 and 9,621,193.78

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Solution

The fourth proportional to 28,790,436.72, 43,185,655.20 and 9,621,193.78 is: 14,431,790.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,790,436.72 : 43,185,655.20 = 9,621,193.78 : x
  2. Step 2: Convert to fraction form
    28,790,436.72/43,185,655.20 = 9,621,193.78/x
  3. Step 3: Cross multiply
    28,790,436.72x = 43,185,655.20 × 9,621,193.78
  4. Step 4: Simplify right side
    28,790,436.72x = 415,497,557,195,464.62
  5. Step 5: Solve for x
    x = 415,497,557,195,464.62/28,790,436.72
  6. Step 6: Final answer
    x = 14,431,790.71

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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.