Finding the Fourth Proportional to 3,879,544.10, 5,353,936.29 and 2,160,664.63
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Solution
The fourth proportional to 3,879,544.10, 5,353,936.29 and 2,160,664.63 is: 2,981,809.33
Step by Step Solution
- Step 1: Write the proportion equation
3,879,544.10 : 5,353,936.29 = 2,160,664.63 : x - Step 2: Convert to fraction form
3,879,544.10/5,353,936.29 = 2,160,664.63/x - Step 3: Cross multiply
3,879,544.10x = 5,353,936.29 × 2,160,664.63 - Step 4: Simplify right side
3,879,544.10x = 11,568,060,759,691.58 - Step 5: Solve for x
x = 11,568,060,759,691.58/3,879,544.10 - Step 6: Final answer
x = 2,981,809.33
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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.