Finding the Fourth Proportional to 6,321,338.57, 8,723,470.20 and 3,420,729.11
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Solution
The fourth proportional to 6,321,338.57, 8,723,470.20 and 3,420,729.11 is: 4,720,618.60
Step by Step Solution
- Step 1: Write the proportion equation
6,321,338.57 : 8,723,470.20 = 3,420,729.11 : x - Step 2: Convert to fraction form
6,321,338.57/8,723,470.20 = 3,420,729.11/x - Step 3: Cross multiply
6,321,338.57x = 8,723,470.20 × 3,420,729.11 - Step 4: Simplify right side
6,321,338.57x = 29,840,628,453,357.52 - Step 5: Solve for x
x = 29,840,628,453,357.52/6,321,338.57 - Step 6: Final answer
x = 4,720,618.60
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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.