Finding the Fourth Proportional to 4,022,378.36, 5,550,991.56 and 2,186,960.12
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Solution
The fourth proportional to 4,022,378.36, 5,550,991.56 and 2,186,960.12 is: 3,018,064.46
Step by Step Solution
- Step 1: Write the proportion equation
4,022,378.36 : 5,550,991.56 = 2,186,960.12 : x - Step 2: Convert to fraction form
4,022,378.36/5,550,991.56 = 2,186,960.12/x - Step 3: Cross multiply
4,022,378.36x = 5,550,991.56 × 2,186,960.12 - Step 4: Simplify right side
4,022,378.36x = 12,139,797,168,176.59 - Step 5: Solve for x
x = 12,139,797,168,176.59/4,022,378.36 - Step 6: Final answer
x = 3,018,064.46
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1.5x scale
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.