Finding the Fourth Proportional to 126,182,320.40, 189,273,480.60 and 54,378,736.40
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Solution
The fourth proportional to 126,182,320.40, 189,273,480.60 and 54,378,736.40 is: 81,568,104.60
Step by Step Solution
- Step 1: Write the proportion equation
126,182,320.40 : 189,273,480.60 = 54,378,736.40 : x - Step 2: Convert to fraction form
126,182,320.40/189,273,480.60 = 54,378,736.40/x - Step 3: Cross multiply
126,182,320.40x = 189,273,480.60 × 54,378,736.40 - Step 4: Simplify right side
126,182,320.40x = 10,292,452,709,057,914 - Step 5: Solve for x
x = 10,292,452,709,057,914/126,182,320.40 - Step 6: Final answer
x = 81,568,104.60
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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.