Finding the Fourth Proportional to 6,789,575.85, 9,369,861.05 and 3,889,527.21
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Solution
The fourth proportional to 6,789,575.85, 9,369,861.05 and 3,889,527.21 is: 5,367,688.69
Step by Step Solution
- Step 1: Write the proportion equation
6,789,575.85 : 9,369,861.05 = 3,889,527.21 : x - Step 2: Convert to fraction form
6,789,575.85/9,369,861.05 = 3,889,527.21/x - Step 3: Cross multiply
6,789,575.85x = 9,369,861.05 × 3,889,527.21 - Step 4: Simplify right side
6,789,575.85x = 36,444,329,488,446.53 - Step 5: Solve for x
x = 36,444,329,488,446.53/6,789,575.85 - Step 6: Final answer
x = 5,367,688.69
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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.