Finding the Fourth Proportional to 2,515,901.76, 3,770,702.64 and 1,981,311.84
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Solution
The fourth proportional to 2,515,901.76, 3,770,702.64 and 1,981,311.84 is: 2,969,487.09
Step by Step Solution
- Step 1: Write the proportion equation
2,515,901.76 : 3,770,702.64 = 1,981,311.84 : x - Step 2: Convert to fraction form
2,515,901.76/3,770,702.64 = 1,981,311.84/x - Step 3: Cross multiply
2,515,901.76x = 3,770,702.64 × 1,981,311.84 - Step 4: Simplify right side
2,515,901.76x = 7,470,937,785,751.26 - Step 5: Solve for x
x = 7,470,937,785,751.26/2,515,901.76 - Step 6: Final answer
x = 2,969,487.09
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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.