Finding the Fourth Proportional to 3,968,279.54, 5,477,391.22 and 2,591,833.68
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Solution
The fourth proportional to 3,968,279.54, 5,477,391.22 and 2,591,833.68 is: 3,577,491.68
Step by Step Solution
- Step 1: Write the proportion equation
3,968,279.54 : 5,477,391.22 = 2,591,833.68 : x - Step 2: Convert to fraction form
3,968,279.54/5,477,391.22 = 2,591,833.68/x - Step 3: Cross multiply
3,968,279.54x = 5,477,391.22 × 2,591,833.68 - Step 4: Simplify right side
3,968,279.54x = 14,196,487,042,532.29 - Step 5: Solve for x
x = 14,196,487,042,532.29/3,968,279.54 - Step 6: Final answer
x = 3,577,491.68
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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.