Finding the Fourth Proportional to 3,102,645.88, 4,278,121.20 and 2,184,581.56
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Solution
The fourth proportional to 3,102,645.88, 4,278,121.20 and 2,184,581.56 is: 3,012,236.99
Step by Step Solution
- Step 1: Write the proportion equation
3,102,645.88 : 4,278,121.20 = 2,184,581.56 : x - Step 2: Convert to fraction form
3,102,645.88/4,278,121.20 = 2,184,581.56/x - Step 3: Cross multiply
3,102,645.88x = 4,278,121.20 × 2,184,581.56 - Step 4: Simplify right side
3,102,645.88x = 9,345,904,684,965.07 - Step 5: Solve for x
x = 9,345,904,684,965.07/3,102,645.88 - Step 6: Final answer
x = 3,012,236.99
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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.