Finding the Fourth Proportional to 31,549,682.40, 47,305,861.20 and 16,433,138.40
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Solution
The fourth proportional to 31,549,682.40, 47,305,861.20 and 16,433,138.40 is: 24,639,987.00
Step by Step Solution
- Step 1: Write the proportion equation
31,549,682.40 : 47,305,861.20 = 16,433,138.40 : x - Step 2: Convert to fraction form
31,549,682.40/47,305,861.20 = 16,433,138.40/x - Step 3: Cross multiply
31,549,682.40x = 47,305,861.20 × 16,433,138.40 - Step 4: Simplify right side
31,549,682.40x = 777,383,764,230,790.12 - Step 5: Solve for x
x = 777,383,764,230,790.12/31,549,682.40 - Step 6: Final answer
x = 24,639,987.00
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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.