Finding the Fourth Proportional to 12,301,351.20, 18,451,929.60 and 3,203,431.20
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Solution
The fourth proportional to 12,301,351.20, 18,451,929.60 and 3,203,431.20 is: 4,805,121.49
Step by Step Solution
- Step 1: Write the proportion equation
12,301,351.20 : 18,451,929.60 = 3,203,431.20 : x - Step 2: Convert to fraction form
12,301,351.20/18,451,929.60 = 3,203,431.20/x - Step 3: Cross multiply
12,301,351.20x = 18,451,929.60 × 3,203,431.20 - Step 4: Simplify right side
12,301,351.20x = 59,109,486,980,843.53 - Step 5: Solve for x
x = 59,109,486,980,843.53/12,301,351.20 - Step 6: Final answer
x = 4,805,121.49
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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.