Home / 629,861,419.20-944,792,128.80-220,864,425.60

Finding the Fourth Proportional to 629,861,419.20, 944,792,128.80 and 220,864,425.60

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Solution

The fourth proportional to 629,861,419.20, 944,792,128.80 and 220,864,425.60 is: 331,296,638.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,861,419.20 : 944,792,128.80 = 220,864,425.60 : x
  2. Step 2: Convert to fraction form
    629,861,419.20/944,792,128.80 = 220,864,425.60/x
  3. Step 3: Cross multiply
    629,861,419.20x = 944,792,128.80 × 220,864,425.60
  4. Step 4: Simplify right side
    629,861,419.20x = 208,670,970,838,813,216
  5. Step 5: Solve for x
    x = 208,670,970,838,813,216/629,861,419.20
  6. Step 6: Final answer
    x = 331,296,638.40

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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.