Finding the Fourth Proportional to 7,198,568.48, 9,934,022.64 and 3,935,396.96
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Solution
The fourth proportional to 7,198,568.48, 9,934,022.64 and 3,935,396.96 is: 5,430,846.79
Step by Step Solution
- Step 1: Write the proportion equation
7,198,568.48 : 9,934,022.64 = 3,935,396.96 : x - Step 2: Convert to fraction form
7,198,568.48/9,934,022.64 = 3,935,396.96/x - Step 3: Cross multiply
7,198,568.48x = 9,934,022.64 × 3,935,396.96 - Step 4: Simplify right side
7,198,568.48x = 39,094,322,498,027.18 - Step 5: Solve for x
x = 39,094,322,498,027.18/7,198,568.48 - Step 6: Final answer
x = 5,430,846.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.