Finding the Fourth Proportional to 2,990,939.12, 4,127,474.99 and 1,632,812.12
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Solution
The fourth proportional to 2,990,939.12, 4,127,474.99 and 1,632,812.12 is: 2,253,269.26
Step by Step Solution
- Step 1: Write the proportion equation
2,990,939.12 : 4,127,474.99 = 1,632,812.12 : x - Step 2: Convert to fraction form
2,990,939.12/4,127,474.99 = 1,632,812.12/x - Step 3: Cross multiply
2,990,939.12x = 4,127,474.99 × 1,632,812.12 - Step 4: Simplify right side
2,990,939.12x = 6,739,391,188,668.88 - Step 5: Solve for x
x = 6,739,391,188,668.88/2,990,939.12 - Step 6: Final answer
x = 2,253,269.26
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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.