Finding the Fourth Proportional to 86,016,548.20, 129,024,822.30 and 32,156,861.80
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Solution
The fourth proportional to 86,016,548.20, 129,024,822.30 and 32,156,861.80 is: 48,235,292.70
Step by Step Solution
- Step 1: Write the proportion equation
86,016,548.20 : 129,024,822.30 = 32,156,861.80 : x - Step 2: Convert to fraction form
86,016,548.20/129,024,822.30 = 32,156,861.80/x - Step 3: Cross multiply
86,016,548.20x = 129,024,822.30 × 32,156,861.80 - Step 4: Simplify right side
86,016,548.20x = 4,149,033,379,470,658 - Step 5: Solve for x
x = 4,149,033,379,470,658/86,016,548.20 - Step 6: Final answer
x = 48,235,292.70
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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.