Finding the Fourth Proportional to 3,920,350.96, 5,410,353.06 and 2,178,230.44
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Solution
The fourth proportional to 3,920,350.96, 5,410,353.06 and 2,178,230.44 is: 3,006,107.32
Step by Step Solution
- Step 1: Write the proportion equation
3,920,350.96 : 5,410,353.06 = 2,178,230.44 : x - Step 2: Convert to fraction form
3,920,350.96/5,410,353.06 = 2,178,230.44/x - Step 3: Cross multiply
3,920,350.96x = 5,410,353.06 × 2,178,230.44 - Step 4: Simplify right side
3,920,350.96x = 11,784,995,726,439.14 - Step 5: Solve for x
x = 11,784,995,726,439.14/3,920,350.96 - Step 6: Final answer
x = 3,006,107.32
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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.