Finding the Fourth Proportional to 126,350,859.80, 189,400,736.66 and 87,931,661.30
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Solution
The fourth proportional to 126,350,859.80, 189,400,736.66 and 87,931,661.30 is: 131,810,115.52
Step by Step Solution
- Step 1: Write the proportion equation
126,350,859.80 : 189,400,736.66 = 87,931,661.30 : x - Step 2: Convert to fraction form
126,350,859.80/189,400,736.66 = 87,931,661.30/x - Step 3: Cross multiply
126,350,859.80x = 189,400,736.66 × 87,931,661.30 - Step 4: Simplify right side
126,350,859.80x = 16,654,321,425,957,612 - Step 5: Solve for x
x = 16,654,321,425,957,612/126,350,859.80 - Step 6: Final answer
x = 131,810,115.52
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.