Finding the Fourth Proportional to 128,147,250.08, 192,218,838.96 and 31,103,760.80
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Solution
The fourth proportional to 128,147,250.08, 192,218,838.96 and 31,103,760.80 is: 46,655,146.99
Step by Step Solution
- Step 1: Write the proportion equation
128,147,250.08 : 192,218,838.96 = 31,103,760.80 : x - Step 2: Convert to fraction form
128,147,250.08/192,218,838.96 = 31,103,760.80/x - Step 3: Cross multiply
128,147,250.08x = 192,218,838.96 × 31,103,760.80 - Step 4: Simplify right side
128,147,250.08x = 5,978,728,788,265,561 - Step 5: Solve for x
x = 5,978,728,788,265,561/128,147,250.08 - Step 6: Final answer
x = 46,655,146.99
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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.