Finding the Fourth Proportional to 128,902,344.57, 193,351,622.33 and 31,858,060.52
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Solution
The fourth proportional to 128,902,344.57, 193,351,622.33 and 31,858,060.52 is: 47,786,622.55
Step by Step Solution
- Step 1: Write the proportion equation
128,902,344.57 : 193,351,622.33 = 31,858,060.52 : x - Step 2: Convert to fraction form
128,902,344.57/193,351,622.33 = 31,858,060.52/x - Step 3: Cross multiply
128,902,344.57x = 193,351,622.33 × 31,858,060.52 - Step 4: Simplify right side
128,902,344.57x = 6,159,807,686,392,348 - Step 5: Solve for x
x = 6,159,807,686,392,348/128,902,344.57 - Step 6: Final answer
x = 47,786,622.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.