Home / 311,987,848.80-467,981,773.20-221,288,584.80

Finding the Fourth Proportional to 311,987,848.80, 467,981,773.20 and 221,288,584.80

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Solution

The fourth proportional to 311,987,848.80, 467,981,773.20 and 221,288,584.80 is: 331,932,877.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,987,848.80 : 467,981,773.20 = 221,288,584.80 : x
  2. Step 2: Convert to fraction form
    311,987,848.80/467,981,773.20 = 221,288,584.80/x
  3. Step 3: Cross multiply
    311,987,848.80x = 467,981,773.20 × 221,288,584.80
  4. Step 4: Simplify right side
    311,987,848.80x = 103,559,024,303,622,576
  5. Step 5: Solve for x
    x = 103,559,024,303,622,576/311,987,848.80
  6. Step 6: Final answer
    x = 331,932,877.20

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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.