Finding the Fourth Proportional to 3,131,635.92, 4,323,739.16 and 2,405,185.36
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Solution
The fourth proportional to 3,131,635.92, 4,323,739.16 and 2,405,185.36 is: 3,320,754.52
Step by Step Solution
- Step 1: Write the proportion equation
3,131,635.92 : 4,323,739.16 = 2,405,185.36 : x - Step 2: Convert to fraction form
3,131,635.92/4,323,739.16 = 2,405,185.36/x - Step 3: Cross multiply
3,131,635.92x = 4,323,739.16 × 2,405,185.36 - Step 4: Simplify right side
3,131,635.92x = 10,399,394,128,090.70 - Step 5: Solve for x
x = 10,399,394,128,090.70/3,131,635.92 - Step 6: Final answer
x = 3,320,754.52
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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.