Finding the Fourth Proportional to 7,338,757.20, 11,010,760.20 and 3,080,230.80
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Solution
The fourth proportional to 7,338,757.20, 11,010,760.20 and 3,080,230.80 is: 4,621,447.72
Step by Step Solution
- Step 1: Write the proportion equation
7,338,757.20 : 11,010,760.20 = 3,080,230.80 : x - Step 2: Convert to fraction form
7,338,757.20/11,010,760.20 = 3,080,230.80/x - Step 3: Cross multiply
7,338,757.20x = 11,010,760.20 × 3,080,230.80 - Step 4: Simplify right side
7,338,757.20x = 33,915,682,699,454.16 - Step 5: Solve for x
x = 33,915,682,699,454.16/7,338,757.20 - Step 6: Final answer
x = 4,621,447.72
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1.5x scale
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.