Home / 221,228,486.40-331,842,729.60-67,874,296.80

Finding the Fourth Proportional to 221,228,486.40, 331,842,729.60 and 67,874,296.80

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Solution

The fourth proportional to 221,228,486.40, 331,842,729.60 and 67,874,296.80 is: 101,811,445.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,228,486.40 : 331,842,729.60 = 67,874,296.80 : x
  2. Step 2: Convert to fraction form
    221,228,486.40/331,842,729.60 = 67,874,296.80/x
  3. Step 3: Cross multiply
    221,228,486.40x = 331,842,729.60 × 67,874,296.80
  4. Step 4: Simplify right side
    221,228,486.40x = 22,523,591,919,792,544
  5. Step 5: Solve for x
    x = 22,523,591,919,792,544/221,228,486.40
  6. Step 6: Final answer
    x = 101,811,445.20

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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.