Finding the Fourth Proportional to 7,693,171.20, 11,540,793.60 and 2,646,028.80
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Solution
The fourth proportional to 7,693,171.20, 11,540,793.60 and 2,646,028.80 is: 3,969,399.80
Step by Step Solution
- Step 1: Write the proportion equation
7,693,171.20 : 11,540,793.60 = 2,646,028.80 : x - Step 2: Convert to fraction form
7,693,171.20/11,540,793.60 = 2,646,028.80/x - Step 3: Cross multiply
7,693,171.20x = 11,540,793.60 × 2,646,028.80 - Step 4: Simplify right side
7,693,171.20x = 30,537,272,240,455.68 - Step 5: Solve for x
x = 30,537,272,240,455.68/7,693,171.20 - Step 6: Final answer
x = 3,969,399.80
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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.