Finding the Fourth Proportional to 3,425,486.80, 5,138,228.18 and 3,198,482.84
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Solution
The fourth proportional to 3,425,486.80, 5,138,228.18 and 3,198,482.84 is: 4,797,722.37
Step by Step Solution
- Step 1: Write the proportion equation
3,425,486.80 : 5,138,228.18 = 3,198,482.84 : x - Step 2: Convert to fraction form
3,425,486.80/5,138,228.18 = 3,198,482.84/x - Step 3: Cross multiply
3,425,486.80x = 5,138,228.18 × 3,198,482.84 - Step 4: Simplify right side
3,425,486.80x = 16,434,534,644,039.50 - Step 5: Solve for x
x = 16,434,534,644,039.50/3,425,486.80 - Step 6: Final answer
x = 4,797,722.37
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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.