Finding the Fourth Proportional to 18,378,568.91, 27,567,846.87 and 4,915,046.99
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Solution
The fourth proportional to 18,378,568.91, 27,567,846.87 and 4,915,046.99 is: 7,372,568.74
Step by Step Solution
- Step 1: Write the proportion equation
18,378,568.91 : 27,567,846.87 = 4,915,046.99 : x - Step 2: Convert to fraction form
18,378,568.91/27,567,846.87 = 4,915,046.99/x - Step 3: Cross multiply
18,378,568.91x = 27,567,846.87 × 4,915,046.99 - Step 4: Simplify right side
18,378,568.91x = 135,497,262,641,335.20 - Step 5: Solve for x
x = 135,497,262,641,335.20/18,378,568.91 - Step 6: Final answer
x = 7,372,568.74
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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.