Finding the Fourth Proportional to 7,207,167.26, 9,945,891.46 and 3,943,981.82
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Solution
The fourth proportional to 7,207,167.26, 9,945,891.46 and 3,943,981.82 is: 5,442,695.26
Step by Step Solution
- Step 1: Write the proportion equation
7,207,167.26 : 9,945,891.46 = 3,943,981.82 : x - Step 2: Convert to fraction form
7,207,167.26/9,945,891.46 = 3,943,981.82/x - Step 3: Cross multiply
7,207,167.26x = 9,945,891.46 × 3,943,981.82 - Step 4: Simplify right side
7,207,167.26x = 39,226,415,101,933.26 - Step 5: Solve for x
x = 39,226,415,101,933.26/7,207,167.26 - Step 6: Final answer
x = 5,442,695.26
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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.