Finding the Fourth Proportional to 2,993,988.75, 4,131,708.12 and 1,635,861.75
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Solution
The fourth proportional to 2,993,988.75, 4,131,708.12 and 1,635,861.75 is: 2,257,491.21
Step by Step Solution
- Step 1: Write the proportion equation
2,993,988.75 : 4,131,708.12 = 1,635,861.75 : x - Step 2: Convert to fraction form
2,993,988.75/4,131,708.12 = 1,635,861.75/x - Step 3: Cross multiply
2,993,988.75x = 4,131,708.12 × 1,635,861.75 - Step 4: Simplify right side
2,993,988.75x = 6,758,903,275,672.41 - Step 5: Solve for x
x = 6,758,903,275,672.41/2,993,988.75 - Step 6: Final answer
x = 2,257,491.21
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.