Finding the Fourth Proportional to 11,517,942.80, 15,894,456.84 and 6,361,193.36
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Solution
The fourth proportional to 11,517,942.80, 15,894,456.84 and 6,361,193.36 is: 8,778,278.82
Step by Step Solution
- Step 1: Write the proportion equation
11,517,942.80 : 15,894,456.84 = 6,361,193.36 : x - Step 2: Convert to fraction form
11,517,942.80/15,894,456.84 = 6,361,193.36/x - Step 3: Cross multiply
11,517,942.80x = 15,894,456.84 × 6,361,193.36 - Step 4: Simplify right side
11,517,942.80x = 101,107,713,311,414.59 - Step 5: Solve for x
x = 101,107,713,311,414.59/11,517,942.80 - Step 6: Final answer
x = 8,778,278.82
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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.