Finding the Fourth Proportional to 7,982,806.84, 11,981,780.56 and 4,940,971.41
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Solution
The fourth proportional to 7,982,806.84, 11,981,780.56 and 4,940,971.41 is: 7,416,142.75
Step by Step Solution
- Step 1: Write the proportion equation
7,982,806.84 : 11,981,780.56 = 4,940,971.41 : x - Step 2: Convert to fraction form
7,982,806.84/11,981,780.56 = 4,940,971.41/x - Step 3: Cross multiply
7,982,806.84x = 11,981,780.56 × 4,940,971.41 - Step 4: Simplify right side
7,982,806.84x = 59,201,635,103,240.03 - Step 5: Solve for x
x = 59,201,635,103,240.03/7,982,806.84 - Step 6: Final answer
x = 7,416,142.75
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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.