Home / 208,517,440.80-312,776,161.20-192,393,127.20

Finding the Fourth Proportional to 208,517,440.80, 312,776,161.20 and 192,393,127.20

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Solution

The fourth proportional to 208,517,440.80, 312,776,161.20 and 192,393,127.20 is: 288,589,690.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,517,440.80 : 312,776,161.20 = 192,393,127.20 : x
  2. Step 2: Convert to fraction form
    208,517,440.80/312,776,161.20 = 192,393,127.20/x
  3. Step 3: Cross multiply
    208,517,440.80x = 312,776,161.20 × 192,393,127.20
  4. Step 4: Simplify right side
    208,517,440.80x = 60,175,983,766,879,296
  5. Step 5: Solve for x
    x = 60,175,983,766,879,296/208,517,440.80
  6. Step 6: Final answer
    x = 288,589,690.80

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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.