Finding the Fourth Proportional to 7,218,512.26, 9,960,884.49 and 4,162,136.02
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Solution
The fourth proportional to 7,218,512.26, 9,960,884.49 and 4,162,136.02 is: 5,743,365.76
Step by Step Solution
- Step 1: Write the proportion equation
7,218,512.26 : 9,960,884.49 = 4,162,136.02 : x - Step 2: Convert to fraction form
7,218,512.26/9,960,884.49 = 4,162,136.02/x - Step 3: Cross multiply
7,218,512.26x = 9,960,884.49 × 4,162,136.02 - Step 4: Simplify right side
7,218,512.26x = 41,458,556,126,888.33 - Step 5: Solve for x
x = 41,458,556,126,888.33/7,218,512.26 - Step 6: Final answer
x = 5,743,365.76
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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.