Home / 658,491,704.40-987,737,556.60-221,647,202.40

Finding the Fourth Proportional to 658,491,704.40, 987,737,556.60 and 221,647,202.40

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Solution

The fourth proportional to 658,491,704.40, 987,737,556.60 and 221,647,202.40 is: 332,470,803.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,491,704.40 : 987,737,556.60 = 221,647,202.40 : x
  2. Step 2: Convert to fraction form
    658,491,704.40/987,737,556.60 = 221,647,202.40/x
  3. Step 3: Cross multiply
    658,491,704.40x = 987,737,556.60 × 221,647,202.40
  4. Step 4: Simplify right side
    658,491,704.40x = 218,929,266,125,801,664
  5. Step 5: Solve for x
    x = 218,929,266,125,801,664/658,491,704.40
  6. Step 6: Final answer
    x = 332,470,803.60

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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.