Finding the Fourth Proportional to 263,039,454.80, 394,584,065.40 and 71,563,230.80
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Solution
The fourth proportional to 263,039,454.80, 394,584,065.40 and 71,563,230.80 is: 107,351,615.99
Step by Step Solution
- Step 1: Write the proportion equation
263,039,454.80 : 394,584,065.40 = 71,563,230.80 : x - Step 2: Convert to fraction form
263,039,454.80/394,584,065.40 = 71,563,230.80/x - Step 3: Cross multiply
263,039,454.80x = 394,584,065.40 × 71,563,230.80 - Step 4: Simplify right side
263,039,454.80x = 28,237,710,542,222,492 - Step 5: Solve for x
x = 28,237,710,542,222,492/263,039,454.80 - Step 6: Final answer
x = 107,351,615.99
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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.