Finding the Fourth Proportional to 6,989,382.24, 9,645,657.84 and 3,933,794.40
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Solution
The fourth proportional to 6,989,382.24, 9,645,657.84 and 3,933,794.40 is: 5,428,810.94
Step by Step Solution
- Step 1: Write the proportion equation
6,989,382.24 : 9,645,657.84 = 3,933,794.40 : x - Step 2: Convert to fraction form
6,989,382.24/9,645,657.84 = 3,933,794.40/x - Step 3: Cross multiply
6,989,382.24x = 9,645,657.84 × 3,933,794.40 - Step 4: Simplify right side
6,989,382.24x = 37,944,034,795,308.09 - Step 5: Solve for x
x = 37,944,034,795,308.09/6,989,382.24 - Step 6: Final answer
x = 5,428,810.94
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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.