Finding the Fourth Proportional to 11,273,311.80, 16,909,769.79 and 7,811,859.42
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Solution
The fourth proportional to 11,273,311.80, 16,909,769.79 and 7,811,859.42 is: 11,717,651.99
Step by Step Solution
- Step 1: Write the proportion equation
11,273,311.80 : 16,909,769.79 = 7,811,859.42 : x - Step 2: Convert to fraction form
11,273,311.80/16,909,769.79 = 7,811,859.42/x - Step 3: Cross multiply
11,273,311.80x = 16,909,769.79 × 7,811,859.42 - Step 4: Simplify right side
11,273,311.80x = 132,096,744,424,042.91 - Step 5: Solve for x
x = 132,096,744,424,042.91/11,273,311.80 - Step 6: Final answer
x = 11,717,651.99
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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.