Finding the Fourth Proportional to 56,861,749.50, 85,292,872.11 and 18,000,391.65
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Solution
The fourth proportional to 56,861,749.50, 85,292,872.11 and 18,000,391.65 is: 27,000,665.94
Step by Step Solution
- Step 1: Write the proportion equation
56,861,749.50 : 85,292,872.11 = 18,000,391.65 : x - Step 2: Convert to fraction form
56,861,749.50/85,292,872.11 = 18,000,391.65/x - Step 3: Cross multiply
56,861,749.50x = 85,292,872.11 × 18,000,391.65 - Step 4: Simplify right side
56,861,749.50x = 1,535,305,102,933,361.75 - Step 5: Solve for x
x = 1,535,305,102,933,361.75/56,861,749.50 - Step 6: Final answer
x = 27,000,665.94
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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.