Finding the Fourth Proportional to 18,160,904.96, 27,215,864.79 and 9,942,418.97
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Solution
The fourth proportional to 18,160,904.96, 27,215,864.79 and 9,942,418.97 is: 14,899,672.18
Step by Step Solution
- Step 1: Write the proportion equation
18,160,904.96 : 27,215,864.79 = 9,942,418.97 : x - Step 2: Convert to fraction form
18,160,904.96/27,215,864.79 = 9,942,418.97/x - Step 3: Cross multiply
18,160,904.96x = 27,215,864.79 × 9,942,418.97 - Step 4: Simplify right side
18,160,904.96x = 270,591,530,236,971.72 - Step 5: Solve for x
x = 270,591,530,236,971.72/18,160,904.96 - Step 6: Final answer
x = 14,899,672.18
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1.5x scale
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.