Finding the Fourth Proportional to 5,471,893.32, 8,207,842.14 and 1,428,369.96
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Solution
The fourth proportional to 5,471,893.32, 8,207,842.14 and 1,428,369.96 is: 2,142,555.50
Step by Step Solution
- Step 1: Write the proportion equation
5,471,893.32 : 8,207,842.14 = 1,428,369.96 : x - Step 2: Convert to fraction form
5,471,893.32/8,207,842.14 = 1,428,369.96/x - Step 3: Cross multiply
5,471,893.32x = 8,207,842.14 × 1,428,369.96 - Step 4: Simplify right side
5,471,893.32x = 11,723,835,149,198.11 - Step 5: Solve for x
x = 11,723,835,149,198.11/5,471,893.32 - Step 6: Final answer
x = 2,142,555.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.