Finding the Fourth Proportional to 5,990,812.40, 8,986,218.60 and 4,290,201.20
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Solution
The fourth proportional to 5,990,812.40, 8,986,218.60 and 4,290,201.20 is: 6,435,301.80
Step by Step Solution
- Step 1: Write the proportion equation
5,990,812.40 : 8,986,218.60 = 4,290,201.20 : x - Step 2: Convert to fraction form
5,990,812.40/8,986,218.60 = 4,290,201.20/x - Step 3: Cross multiply
5,990,812.40x = 8,986,218.60 × 4,290,201.20 - Step 4: Simplify right side
5,990,812.40x = 38,552,685,821,182.32 - Step 5: Solve for x
x = 38,552,685,821,182.32/5,990,812.40 - Step 6: Final answer
x = 6,435,301.80
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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.