Finding the Fourth Proportional to 38,063,879.20, 52,528,206.39 and 20,660,227.97
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Solution
The fourth proportional to 38,063,879.20, 52,528,206.39 and 20,660,227.97 is: 28,511,143.42
Step by Step Solution
- Step 1: Write the proportion equation
38,063,879.20 : 52,528,206.39 = 20,660,227.97 : x - Step 2: Convert to fraction form
38,063,879.20/52,528,206.39 = 20,660,227.97/x - Step 3: Cross multiply
38,063,879.20x = 52,528,206.39 × 20,660,227.97 - Step 4: Simplify right side
38,063,879.20x = 1,085,244,718,872,610.62 - Step 5: Solve for x
x = 1,085,244,718,872,610.62/38,063,879.20 - Step 6: Final answer
x = 28,511,143.42
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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.