Finding the Fourth Proportional to 18,378,568.16, 27,567,845.75 and 4,915,046.24
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Solution
The fourth proportional to 18,378,568.16, 27,567,845.75 and 4,915,046.24 is: 7,372,567.62
Step by Step Solution
- Step 1: Write the proportion equation
18,378,568.16 : 27,567,845.75 = 4,915,046.24 : x - Step 2: Convert to fraction form
18,378,568.16/27,567,845.75 = 4,915,046.24/x - Step 3: Cross multiply
18,378,568.16x = 27,567,845.75 × 4,915,046.24 - Step 4: Simplify right side
18,378,568.16x = 135,497,236,472,885.88 - Step 5: Solve for x
x = 135,497,236,472,885.88/18,378,568.16 - Step 6: Final answer
x = 7,372,567.62
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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.