Finding the Fourth Proportional to 5,198,474.40, 7,798,232.70 and 1,786,311.60
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Solution
The fourth proportional to 5,198,474.40, 7,798,232.70 and 1,786,311.60 is: 2,679,646.46
Step by Step Solution
- Step 1: Write the proportion equation
5,198,474.40 : 7,798,232.70 = 1,786,311.60 : x - Step 2: Convert to fraction form
5,198,474.40/7,798,232.70 = 1,786,311.60/x - Step 3: Cross multiply
5,198,474.40x = 7,798,232.70 × 1,786,311.60 - Step 4: Simplify right side
5,198,474.40x = 13,930,073,531,509.32 - Step 5: Solve for x
x = 13,930,073,531,509.32/5,198,474.40 - Step 6: Final answer
x = 2,679,646.46
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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.