Finding the Fourth Proportional to 4,278,120.36, 6,412,862.56 and 2,681,804.44
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Solution
The fourth proportional to 4,278,120.36, 6,412,862.56 and 2,681,804.44 is: 4,019,999.87
Step by Step Solution
- Step 1: Write the proportion equation
4,278,120.36 : 6,412,862.56 = 2,681,804.44 : x - Step 2: Convert to fraction form
4,278,120.36/6,412,862.56 = 2,681,804.44/x - Step 3: Cross multiply
4,278,120.36x = 6,412,862.56 × 2,681,804.44 - Step 4: Simplify right side
4,278,120.36x = 17,198,043,286,517.77 - Step 5: Solve for x
x = 17,198,043,286,517.77/4,278,120.36 - Step 6: Final answer
x = 4,019,999.87
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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.