Finding the Fourth Proportional to 207,508,704.62, 311,317,571.41 and 74,574,982.20
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Solution
The fourth proportional to 207,508,704.62, 311,317,571.41 and 74,574,982.20 is: 111,882,064.85
Step by Step Solution
- Step 1: Write the proportion equation
207,508,704.62 : 311,317,571.41 = 74,574,982.20 : x - Step 2: Convert to fraction form
207,508,704.62/311,317,571.41 = 74,574,982.20/x - Step 3: Cross multiply
207,508,704.62x = 311,317,571.41 × 74,574,982.20 - Step 4: Simplify right side
207,508,704.62x = 23,216,502,345,677,824 - Step 5: Solve for x
x = 23,216,502,345,677,824/207,508,704.62 - Step 6: Final answer
x = 111,882,064.85
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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.