Finding the Fourth Proportional to 18,376,021.86, 27,563,845.89 and 4,729,115.19
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Solution
The fourth proportional to 18,376,021.86, 27,563,845.89 and 4,729,115.19 is: 7,093,624.69
Step by Step Solution
- Step 1: Write the proportion equation
18,376,021.86 : 27,563,845.89 = 4,729,115.19 : x - Step 2: Convert to fraction form
18,376,021.86/27,563,845.89 = 4,729,115.19/x - Step 3: Cross multiply
18,376,021.86x = 27,563,845.89 × 4,729,115.19 - Step 4: Simplify right side
18,376,021.86x = 130,352,602,293,218.08 - Step 5: Solve for x
x = 130,352,602,293,218.08/18,376,021.86 - Step 6: Final answer
x = 7,093,624.69
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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.