Finding the Fourth Proportional to 11,511,321.92, 15,885,658.64 and 6,284,338.28
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Solution
The fourth proportional to 11,511,321.92, 15,885,658.64 and 6,284,338.28 is: 8,672,405.60
Step by Step Solution
- Step 1: Write the proportion equation
11,511,321.92 : 15,885,658.64 = 6,284,338.28 : x - Step 2: Convert to fraction form
11,511,321.92/15,885,658.64 = 6,284,338.28/x - Step 3: Cross multiply
11,511,321.92x = 15,885,658.64 × 6,284,338.28 - Step 4: Simplify right side
11,511,321.92x = 99,830,852,694,364.75 - Step 5: Solve for x
x = 99,830,852,694,364.75/11,511,321.92 - Step 6: Final answer
x = 8,672,405.60
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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.