Finding the Fourth Proportional to 20,021,357.97, 27,629,691.48 and 11,761,768.35
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Solution
The fourth proportional to 20,021,357.97, 27,629,691.48 and 11,761,768.35 is: 16,231,368.08
Step by Step Solution
- Step 1: Write the proportion equation
20,021,357.97 : 27,629,691.48 = 11,761,768.35 : x - Step 2: Convert to fraction form
20,021,357.97/27,629,691.48 = 11,761,768.35/x - Step 3: Cross multiply
20,021,357.97x = 27,629,691.48 × 11,761,768.35 - Step 4: Simplify right side
20,021,357.97x = 324,974,030,769,728.62 - Step 5: Solve for x
x = 324,974,030,769,728.62/20,021,357.97 - Step 6: Final answer
x = 16,231,368.08
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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.