Finding the Fourth Proportional to 7,428,399.19, 10,246,836.81 and 4,670,716.12
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Solution
The fourth proportional to 7,428,399.19, 10,246,836.81 and 4,670,716.12 is: 6,442,850.56
Step by Step Solution
- Step 1: Write the proportion equation
7,428,399.19 : 10,246,836.81 = 4,670,716.12 : x - Step 2: Convert to fraction form
7,428,399.19/10,246,836.81 = 4,670,716.12/x - Step 3: Cross multiply
7,428,399.19x = 10,246,836.81 × 4,670,716.12 - Step 4: Simplify right side
7,428,399.19x = 47,860,065,867,476.38 - Step 5: Solve for x
x = 47,860,065,867,476.38/7,428,399.19 - Step 6: Final answer
x = 6,442,850.56
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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.