Finding the Fourth Proportional to 18,419,873.22, 27,629,876.79 and 5,640,326.10
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Solution
The fourth proportional to 18,419,873.22, 27,629,876.79 and 5,640,326.10 is: 8,460,509.65
Step by Step Solution
- Step 1: Write the proportion equation
18,419,873.22 : 27,629,876.79 = 5,640,326.10 : x - Step 2: Convert to fraction form
18,419,873.22/27,629,876.79 = 5,640,326.10/x - Step 3: Cross multiply
18,419,873.22x = 27,629,876.79 × 5,640,326.10 - Step 4: Simplify right side
18,419,873.22x = 155,841,515,198,421.22 - Step 5: Solve for x
x = 155,841,515,198,421.22/18,419,873.22 - Step 6: Final answer
x = 8,460,509.65
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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.