Home / 451,010,648.20-676,515,972.30-221,428,136.20

Finding the Fourth Proportional to 451,010,648.20, 676,515,972.30 and 221,428,136.20

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Solution

The fourth proportional to 451,010,648.20, 676,515,972.30 and 221,428,136.20 is: 332,142,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,010,648.20 : 676,515,972.30 = 221,428,136.20 : x
  2. Step 2: Convert to fraction form
    451,010,648.20/676,515,972.30 = 221,428,136.20/x
  3. Step 3: Cross multiply
    451,010,648.20x = 676,515,972.30 × 221,428,136.20
  4. Step 4: Simplify right side
    451,010,648.20x = 149,799,670,855,919,808
  5. Step 5: Solve for x
    x = 149,799,670,855,919,808/451,010,648.20
  6. Step 6: Final answer
    x = 332,142,204.30

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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.