Finding the Fourth Proportional to 18,431,447.70, 27,646,138.16 and 5,651,917.32
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Solution
The fourth proportional to 18,431,447.70, 27,646,138.16 and 5,651,917.32 is: 8,477,559.10
Step by Step Solution
- Step 1: Write the proportion equation
18,431,447.70 : 27,646,138.16 = 5,651,917.32 : x - Step 2: Convert to fraction form
18,431,447.70/27,646,138.16 = 5,651,917.32/x - Step 3: Cross multiply
18,431,447.70x = 27,646,138.16 × 5,651,917.32 - Step 4: Simplify right side
18,431,447.70x = 156,253,687,097,616.94 - Step 5: Solve for x
x = 156,253,687,097,616.94/18,431,447.70 - Step 6: Final answer
x = 8,477,559.10
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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.