Finding the Fourth Proportional to 13,310,046.69, 18,367,864.29 and 7,198,475.19
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Solution
The fourth proportional to 13,310,046.69, 18,367,864.29 and 7,198,475.19 is: 9,933,895.69
Step by Step Solution
- Step 1: Write the proportion equation
13,310,046.69 : 18,367,864.29 = 7,198,475.19 : x - Step 2: Convert to fraction form
13,310,046.69/18,367,864.29 = 7,198,475.19/x - Step 3: Cross multiply
13,310,046.69x = 18,367,864.29 × 7,198,475.19 - Step 4: Simplify right side
13,310,046.69x = 132,220,615,384,851.97 - Step 5: Solve for x
x = 132,220,615,384,851.97/13,310,046.69 - Step 6: Final answer
x = 9,933,895.69
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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.