Finding the Fourth Proportional to 496,434,191.20, 744,651,286.80 and 419,906,687.20
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Solution
The fourth proportional to 496,434,191.20, 744,651,286.80 and 419,906,687.20 is: 629,860,030.80
Step by Step Solution
- Step 1: Write the proportion equation
496,434,191.20 : 744,651,286.80 = 419,906,687.20 : x - Step 2: Convert to fraction form
496,434,191.20/744,651,286.80 = 419,906,687.20/x - Step 3: Cross multiply
496,434,191.20x = 744,651,286.80 × 419,906,687.20 - Step 4: Simplify right side
496,434,191.20x = 312,684,054,959,405,056 - Step 5: Solve for x
x = 312,684,054,959,405,056/496,434,191.20 - Step 6: Final answer
x = 629,860,030.80
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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.