Home / 263,829,152.80-395,743,729.20-198,355,621.60

Finding the Fourth Proportional to 263,829,152.80, 395,743,729.20 and 198,355,621.60

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Solution

The fourth proportional to 263,829,152.80, 395,743,729.20 and 198,355,621.60 is: 297,533,432.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,829,152.80 : 395,743,729.20 = 198,355,621.60 : x
  2. Step 2: Convert to fraction form
    263,829,152.80/395,743,729.20 = 198,355,621.60/x
  3. Step 3: Cross multiply
    263,829,152.80x = 395,743,729.20 × 198,355,621.60
  4. Step 4: Simplify right side
    263,829,152.80x = 78,497,993,399,768,064
  5. Step 5: Solve for x
    x = 78,497,993,399,768,064/263,829,152.80
  6. Step 6: Final answer
    x = 297,533,432.40

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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.