Finding the Fourth Proportional to 5,728,690.75, 7,903,355.75 and 3,279,993.12
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Solution
The fourth proportional to 5,728,690.75, 7,903,355.75 and 3,279,993.12 is: 4,525,109.42
Step by Step Solution
- Step 1: Write the proportion equation
5,728,690.75 : 7,903,355.75 = 3,279,993.12 : x - Step 2: Convert to fraction form
5,728,690.75/7,903,355.75 = 3,279,993.12/x - Step 3: Cross multiply
5,728,690.75x = 7,903,355.75 × 3,279,993.12 - Step 4: Simplify right side
5,728,690.75x = 25,922,952,484,912.44 - Step 5: Solve for x
x = 25,922,952,484,912.44/5,728,690.75 - Step 6: Final answer
x = 4,525,109.42
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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.