Finding the Fourth Proportional to 5,168,075.97, 7,131,944.85 and 2,876,777.94
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Solution
The fourth proportional to 5,168,075.97, 7,131,944.85 and 2,876,777.94 is: 3,969,953.56
Step by Step Solution
- Step 1: Write the proportion equation
5,168,075.97 : 7,131,944.85 = 2,876,777.94 : x - Step 2: Convert to fraction form
5,168,075.97/7,131,944.85 = 2,876,777.94/x - Step 3: Cross multiply
5,168,075.97x = 7,131,944.85 × 2,876,777.94 - Step 4: Simplify right side
5,168,075.97x = 20,517,021,613,776.61 - Step 5: Solve for x
x = 20,517,021,613,776.61/5,168,075.97 - Step 6: Final answer
x = 3,969,953.56
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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.