Finding the Fourth Proportional to 3,668,318.12, 5,053,951.84 and 2,838,538.72
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Solution
The fourth proportional to 3,668,318.12, 5,053,951.84 and 2,838,538.72 is: 3,910,739.89
Step by Step Solution
- Step 1: Write the proportion equation
3,668,318.12 : 5,053,951.84 = 2,838,538.72 : x - Step 2: Convert to fraction form
3,668,318.12/5,053,951.84 = 2,838,538.72/x - Step 3: Cross multiply
3,668,318.12x = 5,053,951.84 × 2,838,538.72 - Step 4: Simplify right side
3,668,318.12x = 14,345,837,986,855.25 - Step 5: Solve for x
x = 14,345,837,986,855.25/3,668,318.12 - Step 6: Final answer
x = 3,910,739.89
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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.