Finding the Fourth Proportional to 5,642,600.13, 7,789,170.87 and 3,809,540.43
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Solution
The fourth proportional to 5,642,600.13, 7,789,170.87 and 3,809,540.43 is: 5,258,774.44
Step by Step Solution
- Step 1: Write the proportion equation
5,642,600.13 : 7,789,170.87 = 3,809,540.43 : x - Step 2: Convert to fraction form
5,642,600.13/7,789,170.87 = 3,809,540.43/x - Step 3: Cross multiply
5,642,600.13x = 7,789,170.87 × 3,809,540.43 - Step 4: Simplify right side
5,642,600.13x = 29,673,161,345,443.28 - Step 5: Solve for x
x = 29,673,161,345,443.28/5,642,600.13 - Step 6: Final answer
x = 5,258,774.44
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1.5x scale
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.