Finding the Fourth Proportional to 19,922,171.72, 27,493,450.71 and 11,101,635.09
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Solution
The fourth proportional to 19,922,171.72, 27,493,450.71 and 11,101,635.09 is: 15,320,732.17
Step by Step Solution
- Step 1: Write the proportion equation
19,922,171.72 : 27,493,450.71 = 11,101,635.09 : x - Step 2: Convert to fraction form
19,922,171.72/27,493,450.71 = 11,101,635.09/x - Step 3: Cross multiply
19,922,171.72x = 27,493,450.71 × 11,101,635.09 - Step 4: Simplify right side
19,922,171.72x = 305,222,257,147,321.44 - Step 5: Solve for x
x = 305,222,257,147,321.44/19,922,171.72 - Step 6: Final answer
x = 15,320,732.17
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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.