Finding the Fourth Proportional to 11,117,672.40, 16,677,286.20 and 4,385,211.60
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Solution
The fourth proportional to 11,117,672.40, 16,677,286.20 and 4,385,211.60 is: 6,578,124.11
Step by Step Solution
- Step 1: Write the proportion equation
11,117,672.40 : 16,677,286.20 = 4,385,211.60 : x - Step 2: Convert to fraction form
11,117,672.40/16,677,286.20 = 4,385,211.60/x - Step 3: Cross multiply
11,117,672.40x = 16,677,286.20 × 4,385,211.60 - Step 4: Simplify right side
11,117,672.40x = 73,133,428,900,759.91 - Step 5: Solve for x
x = 73,133,428,900,759.91/11,117,672.40 - Step 6: Final answer
x = 6,578,124.11
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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.