Finding the Fourth Proportional to 3,864,538.26, 5,324,289.30 and 2,990,366.82
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Solution
The fourth proportional to 3,864,538.26, 5,324,289.30 and 2,990,366.82 is: 4,119,917.31
Step by Step Solution
- Step 1: Write the proportion equation
3,864,538.26 : 5,324,289.30 = 2,990,366.82 : x - Step 2: Convert to fraction form
3,864,538.26/5,324,289.30 = 2,990,366.82/x - Step 3: Cross multiply
3,864,538.26x = 5,324,289.30 × 2,990,366.82 - Step 4: Simplify right side
3,864,538.26x = 15,921,578,062,801.03 - Step 5: Solve for x
x = 15,921,578,062,801.03/3,864,538.26 - Step 6: Final answer
x = 4,119,917.31
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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.