Finding the Fourth Proportional to 3,764,142.20, 5,643,039.32 and 1,632,620.99
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Solution
The fourth proportional to 3,764,142.20, 5,643,039.32 and 1,632,620.99 is: 2,447,554.84
Step by Step Solution
- Step 1: Write the proportion equation
3,764,142.20 : 5,643,039.32 = 1,632,620.99 : x - Step 2: Convert to fraction form
3,764,142.20/5,643,039.32 = 1,632,620.99/x - Step 3: Cross multiply
3,764,142.20x = 5,643,039.32 × 1,632,620.99 - Step 4: Simplify right side
3,764,142.20x = 9,212,944,453,294.15 - Step 5: Solve for x
x = 9,212,944,453,294.15/3,764,142.20 - Step 6: Final answer
x = 2,447,554.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.