Finding the Fourth Proportional to 12,198,212.97, 16,832,286.23 and 7,303,307.84
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Solution
The fourth proportional to 12,198,212.97, 16,832,286.23 and 7,303,307.84 is: 10,077,817.82
Step by Step Solution
- Step 1: Write the proportion equation
12,198,212.97 : 16,832,286.23 = 7,303,307.84 : x - Step 2: Convert to fraction form
12,198,212.97/16,832,286.23 = 7,303,307.84/x - Step 3: Cross multiply
12,198,212.97x = 16,832,286.23 × 7,303,307.84 - Step 4: Simplify right side
12,198,212.97x = 122,931,367,988,683.05 - Step 5: Solve for x
x = 122,931,367,988,683.05/12,198,212.97 - Step 6: Final answer
x = 10,077,817.82
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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.