Home / 192,199,326.12-288,403,942.56-81,517,779.72

Finding the Fourth Proportional to 192,199,326.12, 288,403,942.56 and 81,517,779.72

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Solution

The fourth proportional to 192,199,326.12, 288,403,942.56 and 81,517,779.72 is: 122,321,183.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,199,326.12 : 288,403,942.56 = 81,517,779.72 : x
  2. Step 2: Convert to fraction form
    192,199,326.12/288,403,942.56 = 81,517,779.72/x
  3. Step 3: Cross multiply
    192,199,326.12x = 288,403,942.56 × 81,517,779.72
  4. Step 4: Simplify right side
    192,199,326.12x = 23,510,049,059,985,612
  5. Step 5: Solve for x
    x = 23,510,049,059,985,612/192,199,326.12
  6. Step 6: Final answer
    x = 122,321,183.61

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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.