Finding the Fourth Proportional to 21,988,879.26, 32,985,418.41 and 6,838,742.94
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Solution
The fourth proportional to 21,988,879.26, 32,985,418.41 and 6,838,742.94 is: 10,258,767.38
Step by Step Solution
- Step 1: Write the proportion equation
21,988,879.26 : 32,985,418.41 = 6,838,742.94 : x - Step 2: Convert to fraction form
21,988,879.26/32,985,418.41 = 6,838,742.94/x - Step 3: Cross multiply
21,988,879.26x = 32,985,418.41 × 6,838,742.94 - Step 4: Simplify right side
21,988,879.26x = 225,578,797,274,333.53 - Step 5: Solve for x
x = 225,578,797,274,333.53/21,988,879.26 - Step 6: Final answer
x = 10,258,767.38
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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.