Finding the Fourth Proportional to 3,989,021.41, 5,505,055.65 and 2,439,797.09
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Solution
The fourth proportional to 3,989,021.41, 5,505,055.65 and 2,439,797.09 is: 3,367,046.04
Step by Step Solution
- Step 1: Write the proportion equation
3,989,021.41 : 5,505,055.65 = 2,439,797.09 : x - Step 2: Convert to fraction form
3,989,021.41/5,505,055.65 = 2,439,797.09/x - Step 3: Cross multiply
3,989,021.41x = 5,505,055.65 × 2,439,797.09 - Step 4: Simplify right side
3,989,021.41x = 13,431,218,727,632.78 - Step 5: Solve for x
x = 13,431,218,727,632.78/3,989,021.41 - Step 6: Final answer
x = 3,367,046.04
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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.