Finding the Fourth Proportional to 7,999,318.92, 11,039,052.97 and 4,515,391.05
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Solution
The fourth proportional to 7,999,318.92, 11,039,052.97 and 4,515,391.05 is: 6,231,235.62
Step by Step Solution
- Step 1: Write the proportion equation
7,999,318.92 : 11,039,052.97 = 4,515,391.05 : x - Step 2: Convert to fraction form
7,999,318.92/11,039,052.97 = 4,515,391.05/x - Step 3: Cross multiply
7,999,318.92x = 11,039,052.97 × 4,515,391.05 - Step 4: Simplify right side
7,999,318.92x = 49,845,640,981,213.92 - Step 5: Solve for x
x = 49,845,640,981,213.92/7,999,318.92 - Step 6: Final answer
x = 6,231,235.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.