Finding the Fourth Proportional to 18,431,445.70, 27,646,135.17 and 5,651,915.32
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Solution
The fourth proportional to 18,431,445.70, 27,646,135.17 and 5,651,915.32 is: 8,477,556.10
Step by Step Solution
- Step 1: Write the proportion equation
18,431,445.70 : 27,646,135.17 = 5,651,915.32 : x - Step 2: Convert to fraction form
18,431,445.70/27,646,135.17 = 5,651,915.32/x - Step 3: Cross multiply
18,431,445.70x = 27,646,135.17 × 5,651,915.32 - Step 4: Simplify right side
18,431,445.70x = 156,253,614,906,113.81 - Step 5: Solve for x
x = 156,253,614,906,113.81/18,431,445.70 - Step 6: Final answer
x = 8,477,556.10
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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.