Finding the Fourth Proportional to 5,533,951.80, 8,296,991.10 and 2,120,919.60
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Solution
The fourth proportional to 5,533,951.80, 8,296,991.10 and 2,120,919.60 is: 3,179,870.67
Step by Step Solution
- Step 1: Write the proportion equation
5,533,951.80 : 8,296,991.10 = 2,120,919.60 : x - Step 2: Convert to fraction form
5,533,951.80/8,296,991.10 = 2,120,919.60/x - Step 3: Cross multiply
5,533,951.80x = 8,296,991.10 × 2,120,919.60 - Step 4: Simplify right side
5,533,951.80x = 17,597,251,045,015.56 - Step 5: Solve for x
x = 17,597,251,045,015.56/5,533,951.80 - Step 6: Final answer
x = 3,179,870.67
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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.