Finding the Fourth Proportional to 20,635,361.76, 28,476,479.97 and 11,342,732.97
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Solution
The fourth proportional to 20,635,361.76, 28,476,479.97 and 11,342,732.97 is: 15,652,796.02
Step by Step Solution
- Step 1: Write the proportion equation
20,635,361.76 : 28,476,479.97 = 11,342,732.97 : x - Step 2: Convert to fraction form
20,635,361.76/28,476,479.97 = 11,342,732.97/x - Step 3: Cross multiply
20,635,361.76x = 28,476,479.97 × 11,342,732.97 - Step 4: Simplify right side
20,635,361.76x = 323,001,108,417,933.38 - Step 5: Solve for x
x = 323,001,108,417,933.38/20,635,361.76 - Step 6: Final answer
x = 15,652,796.02
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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.