Finding the Fourth Proportional to 3,940,992.90, 5,441,052.42 and 3,021,517.08
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Solution
The fourth proportional to 3,940,992.90, 5,441,052.42 and 3,021,517.08 is: 4,171,596.66
Step by Step Solution
- Step 1: Write the proportion equation
3,940,992.90 : 5,441,052.42 = 3,021,517.08 : x - Step 2: Convert to fraction form
3,940,992.90/5,441,052.42 = 3,021,517.08/x - Step 3: Cross multiply
3,940,992.90x = 5,441,052.42 × 3,021,517.08 - Step 4: Simplify right side
3,940,992.90x = 16,440,232,820,205.33 - Step 5: Solve for x
x = 16,440,232,820,205.33/3,940,992.90 - Step 6: Final answer
x = 4,171,596.66
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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.