Finding the Fourth Proportional to 27,729,331.68, 38,253,582.72 and 17,942,935.08
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Solution
The fourth proportional to 27,729,331.68, 38,253,582.72 and 17,942,935.08 is: 24,752,906.39
Step by Step Solution
- Step 1: Write the proportion equation
27,729,331.68 : 38,253,582.72 = 17,942,935.08 : x - Step 2: Convert to fraction form
27,729,331.68/38,253,582.72 = 17,942,935.08/x - Step 3: Cross multiply
27,729,331.68x = 38,253,582.72 × 17,942,935.08 - Step 4: Simplify right side
27,729,331.68x = 686,381,551,322,369.75 - Step 5: Solve for x
x = 686,381,551,322,369.75/27,729,331.68 - Step 6: Final answer
x = 24,752,906.39
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1.5x scale
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.