Finding the Fourth Proportional to 5,393,571.62, 7,443,128.54 and 2,912,792.08
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Solution
The fourth proportional to 5,393,571.62, 7,443,128.54 and 2,912,792.08 is: 4,019,652.91
Step by Step Solution
- Step 1: Write the proportion equation
5,393,571.62 : 7,443,128.54 = 2,912,792.08 : x - Step 2: Convert to fraction form
5,393,571.62/7,443,128.54 = 2,912,792.08/x - Step 3: Cross multiply
5,393,571.62x = 7,443,128.54 × 2,912,792.08 - Step 4: Simplify right side
5,393,571.62x = 21,680,285,861,733.96 - Step 5: Solve for x
x = 21,680,285,861,733.96/5,393,571.62 - Step 6: Final answer
x = 4,019,652.91
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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.