Finding the Fourth Proportional to 279,753,037.80, 419,629,556.70 and 211,728,589.80
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Solution
The fourth proportional to 279,753,037.80, 419,629,556.70 and 211,728,589.80 is: 317,592,884.70
Step by Step Solution
- Step 1: Write the proportion equation
279,753,037.80 : 419,629,556.70 = 211,728,589.80 : x - Step 2: Convert to fraction form
279,753,037.80/419,629,556.70 = 211,728,589.80/x - Step 3: Cross multiply
279,753,037.80x = 419,629,556.70 × 211,728,589.80 - Step 4: Simplify right side
279,753,037.80x = 88,847,574,278,490,144 - Step 5: Solve for x
x = 88,847,574,278,490,144/279,753,037.80 - Step 6: Final answer
x = 317,592,884.70
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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.