Finding the Fourth Proportional to 299,568,000.20, 449,352,000.30 and 146,135,078.60
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Solution
The fourth proportional to 299,568,000.20, 449,352,000.30 and 146,135,078.60 is: 219,202,617.90
Step by Step Solution
- Step 1: Write the proportion equation
299,568,000.20 : 449,352,000.30 = 146,135,078.60 : x - Step 2: Convert to fraction form
299,568,000.20/449,352,000.30 = 146,135,078.60/x - Step 3: Cross multiply
299,568,000.20x = 449,352,000.30 × 146,135,078.60 - Step 4: Simplify right side
299,568,000.20x = 65,666,089,882,907,720 - Step 5: Solve for x
x = 65,666,089,882,907,720/299,568,000.20 - Step 6: Final answer
x = 219,202,617.90
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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.