Finding the Fourth Proportional to 3,879,550.12, 5,353,944.58 and 2,160,670.62
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Solution
The fourth proportional to 3,879,550.12, 5,353,944.58 and 2,160,670.62 is: 2,981,817.58
Step by Step Solution
- Step 1: Write the proportion equation
3,879,550.12 : 5,353,944.58 = 2,160,670.62 : x - Step 2: Convert to fraction form
3,879,550.12/5,353,944.58 = 2,160,670.62/x - Step 3: Cross multiply
3,879,550.12x = 5,353,944.58 × 2,160,670.62 - Step 4: Simplify right side
3,879,550.12x = 11,568,110,755,114.24 - Step 5: Solve for x
x = 11,568,110,755,114.24/3,879,550.12 - Step 6: Final answer
x = 2,981,817.58
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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.