Home / 275,328,587.20-412,992,880.80-192,915,428.80

Finding the Fourth Proportional to 275,328,587.20, 412,992,880.80 and 192,915,428.80

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Solution

The fourth proportional to 275,328,587.20, 412,992,880.80 and 192,915,428.80 is: 289,373,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,328,587.20 : 412,992,880.80 = 192,915,428.80 : x
  2. Step 2: Convert to fraction form
    275,328,587.20/412,992,880.80 = 192,915,428.80/x
  3. Step 3: Cross multiply
    275,328,587.20x = 412,992,880.80 × 192,915,428.80
  4. Step 4: Simplify right side
    275,328,587.20x = 79,672,698,690,879,296
  5. Step 5: Solve for x
    x = 79,672,698,690,879,296/275,328,587.20
  6. Step 6: Final answer
    x = 289,373,143.20

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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.