Finding the Fourth Proportional to 201,676,891.20, 302,515,336.80 and 197,197,915.20
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Solution
The fourth proportional to 201,676,891.20, 302,515,336.80 and 197,197,915.20 is: 295,796,872.80
Step by Step Solution
- Step 1: Write the proportion equation
201,676,891.20 : 302,515,336.80 = 197,197,915.20 : x - Step 2: Convert to fraction form
201,676,891.20/302,515,336.80 = 197,197,915.20/x - Step 3: Cross multiply
201,676,891.20x = 302,515,336.80 × 197,197,915.20 - Step 4: Simplify right side
201,676,891.20x = 59,655,393,732,985,840 - Step 5: Solve for x
x = 59,655,393,732,985,840/201,676,891.20 - Step 6: Final answer
x = 295,796,872.80
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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.