Finding the Fourth Proportional to 20,228,272.36, 27,891,163.56 and 16,348,796.80
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Solution
The fourth proportional to 20,228,272.36, 27,891,163.56 and 16,348,796.80 is: 22,542,061.80
Step by Step Solution
- Step 1: Write the proportion equation
20,228,272.36 : 27,891,163.56 = 16,348,796.80 : x - Step 2: Convert to fraction form
20,228,272.36/27,891,163.56 = 16,348,796.80/x - Step 3: Cross multiply
20,228,272.36x = 27,891,163.56 × 16,348,796.80 - Step 4: Simplify right side
20,228,272.36x = 455,986,965,558,004.62 - Step 5: Solve for x
x = 455,986,965,558,004.62/20,228,272.36 - Step 6: Final answer
x = 22,542,061.80
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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.