Finding the Fourth Proportional to 5,218,376.68, 7,202,146.98 and 3,182,367.16
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Solution
The fourth proportional to 5,218,376.68, 7,202,146.98 and 3,182,367.16 is: 4,392,146.72
Step by Step Solution
- Step 1: Write the proportion equation
5,218,376.68 : 7,202,146.98 = 3,182,367.16 : x - Step 2: Convert to fraction form
5,218,376.68/7,202,146.98 = 3,182,367.16/x - Step 3: Cross multiply
5,218,376.68x = 7,202,146.98 × 3,182,367.16 - Step 4: Simplify right side
5,218,376.68x = 22,919,876,030,645.18 - Step 5: Solve for x
x = 22,919,876,030,645.18/5,218,376.68 - Step 6: Final answer
x = 4,392,146.72
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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.