Finding the Fourth Proportional to 3,646,624.60, 5,474,861.70 and 2,131,859.80
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Solution
The fourth proportional to 3,646,624.60, 5,474,861.70 and 2,131,859.80 is: 3,200,668.80
Step by Step Solution
- Step 1: Write the proportion equation
3,646,624.60 : 5,474,861.70 = 2,131,859.80 : x - Step 2: Convert to fraction form
3,646,624.60/5,474,861.70 = 2,131,859.80/x - Step 3: Cross multiply
3,646,624.60x = 5,474,861.70 × 2,131,859.80 - Step 4: Simplify right side
3,646,624.60x = 11,671,637,568,789.66 - Step 5: Solve for x
x = 11,671,637,568,789.66/3,646,624.60 - Step 6: Final answer
x = 3,200,668.80
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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.