Finding the Fourth Proportional to 28,596,520.26, 39,463,478.37 and 15,543,771.12
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Solution
The fourth proportional to 28,596,520.26, 39,463,478.37 and 15,543,771.12 is: 21,450,556.56
Step by Step Solution
- Step 1: Write the proportion equation
28,596,520.26 : 39,463,478.37 = 15,543,771.12 : x - Step 2: Convert to fraction form
28,596,520.26/39,463,478.37 = 15,543,771.12/x - Step 3: Cross multiply
28,596,520.26x = 39,463,478.37 × 15,543,771.12 - Step 4: Simplify right side
28,596,520.26x = 613,411,275,382,350.62 - Step 5: Solve for x
x = 613,411,275,382,350.62/28,596,520.26 - Step 6: Final answer
x = 21,450,556.56
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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.