Finding the Fourth Proportional to 216,474,424.26, 298,723,200.08 and 122,382,945.65
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Solution
The fourth proportional to 216,474,424.26, 298,723,200.08 and 122,382,945.65 is: 168,881,960.47
Step by Step Solution
- Step 1: Write the proportion equation
216,474,424.26 : 298,723,200.08 = 122,382,945.65 : x - Step 2: Convert to fraction form
216,474,424.26/298,723,200.08 = 122,382,945.65/x - Step 3: Cross multiply
216,474,424.26x = 298,723,200.08 × 122,382,945.65 - Step 4: Simplify right side
216,474,424.26x = 36,558,625,160,013,640 - Step 5: Solve for x
x = 36,558,625,160,013,640/216,474,424.26 - Step 6: Final answer
x = 168,881,960.47
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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.