Finding the Fourth Proportional to 5,412,642.72, 8,120,193.84 and 1,818,133.92
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Solution
The fourth proportional to 5,412,642.72, 8,120,193.84 and 1,818,133.92 is: 2,727,613.96
Step by Step Solution
- Step 1: Write the proportion equation
5,412,642.72 : 8,120,193.84 = 1,818,133.92 : x - Step 2: Convert to fraction form
5,412,642.72/8,120,193.84 = 1,818,133.92/x - Step 3: Cross multiply
5,412,642.72x = 8,120,193.84 × 1,818,133.92 - Step 4: Simplify right side
5,412,642.72x = 14,763,599,857,479.05 - Step 5: Solve for x
x = 14,763,599,857,479.05/5,412,642.72 - Step 6: Final answer
x = 2,727,613.96
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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.