Finding the Fourth Proportional to 5,328,874.41, 7,990,251.88 and 2,086,615.94
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Solution
The fourth proportional to 5,328,874.41, 7,990,251.88 and 2,086,615.94 is: 3,128,725.82
Step by Step Solution
- Step 1: Write the proportion equation
5,328,874.41 : 7,990,251.88 = 2,086,615.94 : x - Step 2: Convert to fraction form
5,328,874.41/7,990,251.88 = 2,086,615.94/x - Step 3: Cross multiply
5,328,874.41x = 7,990,251.88 × 2,086,615.94 - Step 4: Simplify right side
5,328,874.41x = 16,672,586,957,716.72 - Step 5: Solve for x
x = 16,672,586,957,716.72/5,328,874.41 - Step 6: Final answer
x = 3,128,725.82
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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.