Finding the Fourth Proportional to 5,168,075.47, 7,131,944.16 and 2,876,777.44
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Solution
The fourth proportional to 5,168,075.47, 7,131,944.16 and 2,876,777.44 is: 3,969,952.87
Step by Step Solution
- Step 1: Write the proportion equation
5,168,075.47 : 7,131,944.16 = 2,876,777.44 : x - Step 2: Convert to fraction form
5,168,075.47/7,131,944.16 = 2,876,777.44/x - Step 3: Cross multiply
5,168,075.47x = 7,131,944.16 × 2,876,777.44 - Step 4: Simplify right side
5,168,075.47x = 20,517,016,062,827.75 - Step 5: Solve for x
x = 20,517,016,062,827.75/5,168,075.47 - Step 6: Final answer
x = 3,969,952.87
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1.5x scale
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.