Finding the Fourth Proportional to 20,021,244.57, 27,629,535.11 and 11,761,654.95
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Solution
The fourth proportional to 20,021,244.57, 27,629,535.11 and 11,761,654.95 is: 16,231,211.66
Step by Step Solution
- Step 1: Write the proportion equation
20,021,244.57 : 27,629,535.11 = 11,761,654.95 : x - Step 2: Convert to fraction form
20,021,244.57/27,629,535.11 = 11,761,654.95/x - Step 3: Cross multiply
20,021,244.57x = 27,629,535.11 × 11,761,654.95 - Step 4: Simplify right side
20,021,244.57x = 324,969,058,333,922 - Step 5: Solve for x
x = 324,969,058,333,922/20,021,244.57 - Step 6: Final answer
x = 16,231,211.66
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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.