Finding the Fourth Proportional to 397,831,217.20, 596,746,825.80 and 333,261,135.70
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Solution
The fourth proportional to 397,831,217.20, 596,746,825.80 and 333,261,135.70 is: 499,891,703.55
Step by Step Solution
- Step 1: Write the proportion equation
397,831,217.20 : 596,746,825.80 = 333,261,135.70 : x - Step 2: Convert to fraction form
397,831,217.20/596,746,825.80 = 333,261,135.70/x - Step 3: Cross multiply
397,831,217.20x = 596,746,825.80 × 333,261,135.70 - Step 4: Simplify right side
397,831,217.20x = 198,872,524,891,478,048 - Step 5: Solve for x
x = 198,872,524,891,478,048/397,831,217.20 - Step 6: Final answer
x = 499,891,703.55
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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.