Finding the Fourth Proportional to 18,986,514.65, 26,201,516.01 and 10,284,687.18
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Solution
The fourth proportional to 18,986,514.65, 26,201,516.01 and 10,284,687.18 is: 14,192,936.45
Step by Step Solution
- Step 1: Write the proportion equation
18,986,514.65 : 26,201,516.01 = 10,284,687.18 : x - Step 2: Convert to fraction form
18,986,514.65/26,201,516.01 = 10,284,687.18/x - Step 3: Cross multiply
18,986,514.65x = 26,201,516.01 × 10,284,687.18 - Step 4: Simplify right side
18,986,514.65x = 269,474,395,766,044.19 - Step 5: Solve for x
x = 269,474,395,766,044.19/18,986,514.65 - Step 6: Final answer
x = 14,192,936.45
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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.