Finding the Fourth Proportional to 18,384,985.09, 27,541,601.21 and 14,322,450.84
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Solution
The fourth proportional to 18,384,985.09, 27,541,601.21 and 14,322,450.84 is: 21,455,727.45
Step by Step Solution
- Step 1: Write the proportion equation
18,384,985.09 : 27,541,601.21 = 14,322,450.84 : x - Step 2: Convert to fraction form
18,384,985.09/27,541,601.21 = 14,322,450.84/x - Step 3: Cross multiply
18,384,985.09x = 27,541,601.21 × 14,322,450.84 - Step 4: Simplify right side
18,384,985.09x = 394,463,229,175,789.25 - Step 5: Solve for x
x = 394,463,229,175,789.25/18,384,985.09 - Step 6: Final answer
x = 21,455,727.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.