Finding the Fourth Proportional to 57,811,482.71, 79,784,891.49 and 31,711,045.05
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Solution
The fourth proportional to 57,811,482.71, 79,784,891.49 and 31,711,045.05 is: 43,764,009.67
Step by Step Solution
- Step 1: Write the proportion equation
57,811,482.71 : 79,784,891.49 = 31,711,045.05 : x - Step 2: Convert to fraction form
57,811,482.71/79,784,891.49 = 31,711,045.05/x - Step 3: Cross multiply
57,811,482.71x = 79,784,891.49 × 31,711,045.05 - Step 4: Simplify right side
57,811,482.71x = 2,530,062,288,467,668.50 - Step 5: Solve for x
x = 2,530,062,288,467,668.50/57,811,482.71 - Step 6: Final answer
x = 43,764,009.67
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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.