Finding the Fourth Proportional to 231,825,748.20, 347,738,622.30 and 207,639,277.80
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Solution
The fourth proportional to 231,825,748.20, 347,738,622.30 and 207,639,277.80 is: 311,458,916.70
Step by Step Solution
- Step 1: Write the proportion equation
231,825,748.20 : 347,738,622.30 = 207,639,277.80 : x - Step 2: Convert to fraction form
231,825,748.20/347,738,622.30 = 207,639,277.80/x - Step 3: Cross multiply
231,825,748.20x = 347,738,622.30 × 207,639,277.80 - Step 4: Simplify right side
231,825,748.20x = 72,204,196,397,538,976 - Step 5: Solve for x
x = 72,204,196,397,538,976/231,825,748.20 - Step 6: Final answer
x = 311,458,916.70
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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.