Finding the Fourth Proportional to 11,472,694.40, 15,832,069.12 and 6,315,858.56
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Solution
The fourth proportional to 11,472,694.40, 15,832,069.12 and 6,315,858.56 is: 8,715,747.65
Step by Step Solution
- Step 1: Write the proportion equation
11,472,694.40 : 15,832,069.12 = 6,315,858.56 : x - Step 2: Convert to fraction form
11,472,694.40/15,832,069.12 = 6,315,858.56/x - Step 3: Cross multiply
11,472,694.40x = 15,832,069.12 × 6,315,858.56 - Step 4: Simplify right side
11,472,694.40x = 99,993,109,274,063.66 - Step 5: Solve for x
x = 99,993,109,274,063.66/11,472,694.40 - Step 6: Final answer
x = 8,715,747.65
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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.