Finding the Fourth Proportional to 263,056,811.80, 394,585,217.70 and 255,498,539.80
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Solution
The fourth proportional to 263,056,811.80, 394,585,217.70 and 255,498,539.80 is: 383,247,809.70
Step by Step Solution
- Step 1: Write the proportion equation
263,056,811.80 : 394,585,217.70 = 255,498,539.80 : x - Step 2: Convert to fraction form
263,056,811.80/394,585,217.70 = 255,498,539.80/x - Step 3: Cross multiply
263,056,811.80x = 394,585,217.70 × 255,498,539.80 - Step 4: Simplify right side
263,056,811.80x = 100,815,946,949,015,120 - Step 5: Solve for x
x = 100,815,946,949,015,120/263,056,811.80 - Step 6: Final answer
x = 383,247,809.70
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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.