Finding the Fourth Proportional to 8,367,982.20, 12,546,243.01 and 4,261,354.05
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Solution
The fourth proportional to 8,367,982.20, 12,546,243.01 and 4,261,354.05 is: 6,389,112.95
Step by Step Solution
- Step 1: Write the proportion equation
8,367,982.20 : 12,546,243.01 = 4,261,354.05 : x - Step 2: Convert to fraction form
8,367,982.20/12,546,243.01 = 4,261,354.05/x - Step 3: Cross multiply
8,367,982.20x = 12,546,243.01 × 4,261,354.05 - Step 4: Simplify right side
8,367,982.20x = 53,463,983,441,640.92 - Step 5: Solve for x
x = 53,463,983,441,640.92/8,367,982.20 - Step 6: Final answer
x = 6,389,112.95
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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.