Finding the Fourth Proportional to 4,370,857.70, 6,556,286.55 and 3,181,129.70
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Solution
The fourth proportional to 4,370,857.70, 6,556,286.55 and 3,181,129.70 is: 4,771,694.55
Step by Step Solution
- Step 1: Write the proportion equation
4,370,857.70 : 6,556,286.55 = 3,181,129.70 : x - Step 2: Convert to fraction form
4,370,857.70/6,556,286.55 = 3,181,129.70/x - Step 3: Cross multiply
4,370,857.70x = 6,556,286.55 × 3,181,129.70 - Step 4: Simplify right side
4,370,857.70x = 20,856,397,865,915.54 - Step 5: Solve for x
x = 20,856,397,865,915.54/4,370,857.70 - Step 6: Final answer
x = 4,771,694.55
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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.