Finding the Fourth Proportional to 128,902,337.07, 193,351,611.11 and 31,858,053
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Solution
The fourth proportional to 128,902,337.07, 193,351,611.11 and 31,858,053 is: 47,786,611.28
Step by Step Solution
- Step 1: Write the proportion equation
128,902,337.07 : 193,351,611.11 = 31,858,053 : x - Step 2: Convert to fraction form
128,902,337.07/193,351,611.11 = 31,858,053/x - Step 3: Cross multiply
128,902,337.07x = 193,351,611.11 × 31,858,053 - Step 4: Simplify right side
128,902,337.07x = 6,159,805,874,218,478 - Step 5: Solve for x
x = 6,159,805,874,218,478/128,902,337.07 - Step 6: Final answer
x = 47,786,611.28
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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.