Finding the Fourth Proportional to 3,987,914.63, 5,503,294.05 and 2,177,078.63
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Solution
The fourth proportional to 3,987,914.63, 5,503,294.05 and 2,177,078.63 is: 3,004,353.15
Step by Step Solution
- Step 1: Write the proportion equation
3,987,914.63 : 5,503,294.05 = 2,177,078.63 : x - Step 2: Convert to fraction form
3,987,914.63/5,503,294.05 = 2,177,078.63/x - Step 3: Cross multiply
3,987,914.63x = 5,503,294.05 × 2,177,078.63 - Step 4: Simplify right side
3,987,914.63x = 11,981,103,870,861.15 - Step 5: Solve for x
x = 11,981,103,870,861.15/3,987,914.63 - Step 6: Final answer
x = 3,004,353.15
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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.