Finding the Fourth Proportional to 5,324,542.16, 7,986,813.19 and 1,281,029.93
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Solution
The fourth proportional to 5,324,542.16, 7,986,813.19 and 1,281,029.93 is: 1,921,544.88
Step by Step Solution
- Step 1: Write the proportion equation
5,324,542.16 : 7,986,813.19 = 1,281,029.93 : x - Step 2: Convert to fraction form
5,324,542.16/7,986,813.19 = 1,281,029.93/x - Step 3: Cross multiply
5,324,542.16x = 7,986,813.19 × 1,281,029.93 - Step 4: Simplify right side
5,324,542.16x = 10,231,346,741,708.78 - Step 5: Solve for x
x = 10,231,346,741,708.78/5,324,542.16 - Step 6: Final answer
x = 1,921,544.88
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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.