Home / 262,040,813.91-393,047,049.11-80,288,516.79

Finding the Fourth Proportional to 262,040,813.91, 393,047,049.11 and 80,288,516.79

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Solution

The fourth proportional to 262,040,813.91, 393,047,049.11 and 80,288,516.79 is: 120,428,433.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,040,813.91 : 393,047,049.11 = 80,288,516.79 : x
  2. Step 2: Convert to fraction form
    262,040,813.91/393,047,049.11 = 80,288,516.79/x
  3. Step 3: Cross multiply
    262,040,813.91x = 393,047,049.11 × 80,288,516.79
  4. Step 4: Simplify right side
    262,040,813.91x = 31,557,164,601,326,752
  5. Step 5: Solve for x
    x = 31,557,164,601,326,752/262,040,813.91
  6. Step 6: Final answer
    x = 120,428,433.00

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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.