Finding the Fourth Proportional to 7,542,759.20, 11,314,138.80 and 2,750,604.80
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Solution
The fourth proportional to 7,542,759.20, 11,314,138.80 and 2,750,604.80 is: 4,125,907.20
Step by Step Solution
- Step 1: Write the proportion equation
7,542,759.20 : 11,314,138.80 = 2,750,604.80 : x - Step 2: Convert to fraction form
7,542,759.20/11,314,138.80 = 2,750,604.80/x - Step 3: Cross multiply
7,542,759.20x = 11,314,138.80 × 2,750,604.80 - Step 4: Simplify right side
7,542,759.20x = 31,120,724,491,146.24 - Step 5: Solve for x
x = 31,120,724,491,146.24/7,542,759.20 - Step 6: Final answer
x = 4,125,907.20
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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.