Finding the Fourth Proportional to 153,468,286.20, 230,202,429.30 and 133,760,791.80
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Solution
The fourth proportional to 153,468,286.20, 230,202,429.30 and 133,760,791.80 is: 200,641,187.70
Step by Step Solution
- Step 1: Write the proportion equation
153,468,286.20 : 230,202,429.30 = 133,760,791.80 : x - Step 2: Convert to fraction form
153,468,286.20/230,202,429.30 = 133,760,791.80/x - Step 3: Cross multiply
153,468,286.20x = 230,202,429.30 × 133,760,791.80 - Step 4: Simplify right side
153,468,286.20x = 30,792,059,217,451,520 - Step 5: Solve for x
x = 30,792,059,217,451,520/153,468,286.20 - Step 6: Final answer
x = 200,641,187.70
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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.