Finding the Fourth Proportional to 494,352,137.80, 741,528,206.70 and 287,444,441.80
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Solution
The fourth proportional to 494,352,137.80, 741,528,206.70 and 287,444,441.80 is: 431,166,662.70
Step by Step Solution
- Step 1: Write the proportion equation
494,352,137.80 : 741,528,206.70 = 287,444,441.80 : x - Step 2: Convert to fraction form
494,352,137.80/741,528,206.70 = 287,444,441.80/x - Step 3: Cross multiply
494,352,137.80x = 741,528,206.70 × 287,444,441.80 - Step 4: Simplify right side
494,352,137.80x = 213,148,161,453,836,544 - Step 5: Solve for x
x = 213,148,161,453,836,544/494,352,137.80 - Step 6: Final answer
x = 431,166,662.70
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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.