Finding the Fourth Proportional to 38,846,428.26, 53,608,062.90 and 21,442,768.94
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Solution
The fourth proportional to 38,846,428.26, 53,608,062.90 and 21,442,768.94 is: 29,591,016.67
Step by Step Solution
- Step 1: Write the proportion equation
38,846,428.26 : 53,608,062.90 = 21,442,768.94 : x - Step 2: Convert to fraction form
38,846,428.26/53,608,062.90 = 21,442,768.94/x - Step 3: Cross multiply
38,846,428.26x = 53,608,062.90 × 21,442,768.94 - Step 4: Simplify right side
38,846,428.26x = 1,149,505,306,085,686.25 - Step 5: Solve for x
x = 1,149,505,306,085,686.25/38,846,428.26 - Step 6: Final answer
x = 29,591,016.67
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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.