Finding the Fourth Proportional to 379,957,505.58, 524,342,367.09 and 206,117,249.58
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Solution
The fourth proportional to 379,957,505.58, 524,342,367.09 and 206,117,249.58 is: 284,442,351.99
Step by Step Solution
- Step 1: Write the proportion equation
379,957,505.58 : 524,342,367.09 = 206,117,249.58 : x - Step 2: Convert to fraction form
379,957,505.58/524,342,367.09 = 206,117,249.58/x - Step 3: Cross multiply
379,957,505.58x = 524,342,367.09 × 206,117,249.58 - Step 4: Simplify right side
379,957,505.58x = 108,076,006,542,857,504 - Step 5: Solve for x
x = 108,076,006,542,857,504/379,957,505.58 - Step 6: Final answer
x = 284,442,351.99
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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.