Finding the Fourth Proportional to 126,125,910.80, 189,216,859.80 and 57,952,163.60
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Solution
The fourth proportional to 126,125,910.80, 189,216,859.80 and 57,952,163.60 is: 86,941,107.86
Step by Step Solution
- Step 1: Write the proportion equation
126,125,910.80 : 189,216,859.80 = 57,952,163.60 : x - Step 2: Convert to fraction form
126,125,910.80/189,216,859.80 = 57,952,163.60/x - Step 3: Cross multiply
126,125,910.80x = 189,216,859.80 × 57,952,163.60 - Step 4: Simplify right side
126,125,910.80x = 10,965,526,415,007,864 - Step 5: Solve for x
x = 10,965,526,415,007,864/126,125,910.80 - Step 6: Final answer
x = 86,941,107.86
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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.