Home / 262,040,814.91-393,047,050.60-80,288,517.79

Finding the Fourth Proportional to 262,040,814.91, 393,047,050.60 and 80,288,517.79

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Solution

The fourth proportional to 262,040,814.91, 393,047,050.60 and 80,288,517.79 is: 120,428,434.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,040,814.91 : 393,047,050.60 = 80,288,517.79 : x
  2. Step 2: Convert to fraction form
    262,040,814.91/393,047,050.60 = 80,288,517.79/x
  3. Step 3: Cross multiply
    262,040,814.91x = 393,047,050.60 × 80,288,517.79
  4. Step 4: Simplify right side
    262,040,814.91x = 31,557,165,114,405,136
  5. Step 5: Solve for x
    x = 31,557,165,114,405,136/262,040,814.91
  6. Step 6: Final answer
    x = 120,428,434.50

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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.