Finding the Fourth Proportional to 4,990,729.07, 6,887,153.33 and 2,815,979.91
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Solution
The fourth proportional to 4,990,729.07, 6,887,153.33 and 2,815,979.91 is: 3,886,022.49
Step by Step Solution
- Step 1: Write the proportion equation
4,990,729.07 : 6,887,153.33 = 2,815,979.91 : x - Step 2: Convert to fraction form
4,990,729.07/6,887,153.33 = 2,815,979.91/x - Step 3: Cross multiply
4,990,729.07x = 6,887,153.33 × 2,815,979.91 - Step 4: Simplify right side
4,990,729.07x = 19,394,085,400,289.70 - Step 5: Solve for x
x = 19,394,085,400,289.70/4,990,729.07 - Step 6: Final answer
x = 3,886,022.49
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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.