Finding the Fourth Proportional to 8,419,680.66, 11,618,291.64 and 6,215,715.68
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Solution
The fourth proportional to 8,419,680.66, 11,618,291.64 and 6,215,715.68 is: 8,577,047.09
Step by Step Solution
- Step 1: Write the proportion equation
8,419,680.66 : 11,618,291.64 = 6,215,715.68 : x - Step 2: Convert to fraction form
8,419,680.66/11,618,291.64 = 6,215,715.68/x - Step 3: Cross multiply
8,419,680.66x = 11,618,291.64 × 6,215,715.68 - Step 4: Simplify right side
8,419,680.66x = 72,215,997,521,560.92 - Step 5: Solve for x
x = 72,215,997,521,560.92/8,419,680.66 - Step 6: Final answer
x = 8,577,047.09
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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.