Finding the Fourth Proportional to 131,527,508.20, 197,291,262.30 and 126,236,717.80
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Solution
The fourth proportional to 131,527,508.20, 197,291,262.30 and 126,236,717.80 is: 189,355,076.70
Step by Step Solution
- Step 1: Write the proportion equation
131,527,508.20 : 197,291,262.30 = 126,236,717.80 : x - Step 2: Convert to fraction form
131,527,508.20/197,291,262.30 = 126,236,717.80/x - Step 3: Cross multiply
131,527,508.20x = 197,291,262.30 × 126,236,717.80 - Step 4: Simplify right side
131,527,508.20x = 24,905,401,403,370,880 - Step 5: Solve for x
x = 24,905,401,403,370,880/131,527,508.20 - Step 6: Final answer
x = 189,355,076.70
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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.