Finding the Fourth Proportional to 8,215,034.18, 11,332,975.48 and 5,315,370.26
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Solution
The fourth proportional to 8,215,034.18, 11,332,975.48 and 5,315,370.26 is: 7,332,770.56
Step by Step Solution
- Step 1: Write the proportion equation
8,215,034.18 : 11,332,975.48 = 5,315,370.26 : x - Step 2: Convert to fraction form
8,215,034.18/11,332,975.48 = 5,315,370.26/x - Step 3: Cross multiply
8,215,034.18x = 11,332,975.48 × 5,315,370.26 - Step 4: Simplify right side
8,215,034.18x = 60,238,960,753,747.91 - Step 5: Solve for x
x = 60,238,960,753,747.91/8,215,034.18 - Step 6: Final answer
x = 7,332,770.56
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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.