Finding the Fourth Proportional to 18,125,518.65, 27,188,277.98 and 17,428,789.05
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Solution
The fourth proportional to 18,125,518.65, 27,188,277.98 and 17,428,789.05 is: 26,143,183.58
Step by Step Solution
- Step 1: Write the proportion equation
18,125,518.65 : 27,188,277.98 = 17,428,789.05 : x - Step 2: Convert to fraction form
18,125,518.65/27,188,277.98 = 17,428,789.05/x - Step 3: Cross multiply
18,125,518.65x = 27,188,277.98 × 17,428,789.05 - Step 4: Simplify right side
18,125,518.65x = 473,858,761,459,036.25 - Step 5: Solve for x
x = 473,858,761,459,036.25/18,125,518.65 - Step 6: Final answer
x = 26,143,183.58
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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.