Finding the Fourth Proportional to 18,626,348.54, 27,939,530.58 and 8,379,239.36
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Solution
The fourth proportional to 18,626,348.54, 27,939,530.58 and 8,379,239.36 is: 12,568,862.54
Step by Step Solution
- Step 1: Write the proportion equation
18,626,348.54 : 27,939,530.58 = 8,379,239.36 : x - Step 2: Convert to fraction form
18,626,348.54/27,939,530.58 = 8,379,239.36/x - Step 3: Cross multiply
18,626,348.54x = 27,939,530.58 × 8,379,239.36 - Step 4: Simplify right side
18,626,348.54x = 234,112,014,335,859.62 - Step 5: Solve for x
x = 234,112,014,335,859.62/18,626,348.54 - Step 6: Final answer
x = 12,568,862.54
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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.