Finding the Fourth Proportional to 397,831,277.20, 596,746,915.80 and 333,261,195.70
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Solution
The fourth proportional to 397,831,277.20, 596,746,915.80 and 333,261,195.70 is: 499,891,793.55
Step by Step Solution
- Step 1: Write the proportion equation
397,831,277.20 : 596,746,915.80 = 333,261,195.70 : x - Step 2: Convert to fraction form
397,831,277.20/596,746,915.80 = 333,261,195.70/x - Step 3: Cross multiply
397,831,277.20x = 596,746,915.80 × 333,261,195.70 - Step 4: Simplify right side
397,831,277.20x = 198,872,590,689,795,200 - Step 5: Solve for x
x = 198,872,590,689,795,200/397,831,277.20 - Step 6: Final answer
x = 499,891,793.55
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1.5x scale
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.