Finding the Fourth Proportional to 18,664,333.26, 27,990,447.97 and 7,149,187.77
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Solution
The fourth proportional to 18,664,333.26, 27,990,447.97 and 7,149,187.77 is: 10,721,463.53
Step by Step Solution
- Step 1: Write the proportion equation
18,664,333.26 : 27,990,447.97 = 7,149,187.77 : x - Step 2: Convert to fraction form
18,664,333.26/27,990,447.97 = 7,149,187.77/x - Step 3: Cross multiply
18,664,333.26x = 27,990,447.97 × 7,149,187.77 - Step 4: Simplify right side
18,664,333.26x = 200,108,968,303,945.31 - Step 5: Solve for x
x = 200,108,968,303,945.31/18,664,333.26 - Step 6: Final answer
x = 10,721,463.53
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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.