Finding the Fourth Proportional to 18,568,151.03, 27,819,275.75 and 7,761,629.99
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Solution
The fourth proportional to 18,568,151.03, 27,819,275.75 and 7,761,629.99 is: 11,628,671.30
Step by Step Solution
- Step 1: Write the proportion equation
18,568,151.03 : 27,819,275.75 = 7,761,629.99 : x - Step 2: Convert to fraction form
18,568,151.03/27,819,275.75 = 7,761,629.99/x - Step 3: Cross multiply
18,568,151.03x = 27,819,275.75 × 7,761,629.99 - Step 4: Simplify right side
18,568,151.03x = 215,922,925,021,125.91 - Step 5: Solve for x
x = 215,922,925,021,125.91/18,568,151.03 - Step 6: Final answer
x = 11,628,671.30
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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.