Finding the Fourth Proportional to 126,857,491.20, 190,286,236.80 and 88,593,739.20
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Solution
The fourth proportional to 126,857,491.20, 190,286,236.80 and 88,593,739.20 is: 132,890,608.80
Step by Step Solution
- Step 1: Write the proportion equation
126,857,491.20 : 190,286,236.80 = 88,593,739.20 : x - Step 2: Convert to fraction form
126,857,491.20/190,286,236.80 = 88,593,739.20/x - Step 3: Cross multiply
126,857,491.20x = 190,286,236.80 × 88,593,739.20 - Step 4: Simplify right side
126,857,491.20x = 16,858,169,236,408,644 - Step 5: Solve for x
x = 16,858,169,236,408,644/126,857,491.20 - Step 6: Final answer
x = 132,890,608.80
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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.