Finding the Fourth Proportional to 3,941,651.87, 5,438,450.19 and 2,309,181.67
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Solution
The fourth proportional to 3,941,651.87, 5,438,450.19 and 2,309,181.67 is: 3,186,067.64
Step by Step Solution
- Step 1: Write the proportion equation
3,941,651.87 : 5,438,450.19 = 2,309,181.67 : x - Step 2: Convert to fraction form
3,941,651.87/5,438,450.19 = 2,309,181.67/x - Step 3: Cross multiply
3,941,651.87x = 5,438,450.19 × 2,309,181.67 - Step 4: Simplify right side
3,941,651.87x = 12,558,369,457,338.51 - Step 5: Solve for x
x = 12,558,369,457,338.51/3,941,651.87 - Step 6: Final answer
x = 3,186,067.64
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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.