Finding the Fourth Proportional to 21,151,512.99, 29,189,519.24 and 11,494,343.07
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Solution
The fourth proportional to 21,151,512.99, 29,189,519.24 and 11,494,343.07 is: 15,862,427.82
Step by Step Solution
- Step 1: Write the proportion equation
21,151,512.99 : 29,189,519.24 = 11,494,343.07 : x - Step 2: Convert to fraction form
21,151,512.99/29,189,519.24 = 11,494,343.07/x - Step 3: Cross multiply
21,151,512.99x = 29,189,519.24 × 11,494,343.07 - Step 4: Simplify right side
21,151,512.99x = 335,514,348,135,453.94 - Step 5: Solve for x
x = 335,514,348,135,453.94/21,151,512.99 - Step 6: Final answer
x = 15,862,427.82
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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.