Finding the Fourth Proportional to 18,235,979.70, 27,353,969.55 and 17,396,171.70
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Solution
The fourth proportional to 18,235,979.70, 27,353,969.55 and 17,396,171.70 is: 26,094,257.55
Step by Step Solution
- Step 1: Write the proportion equation
18,235,979.70 : 27,353,969.55 = 17,396,171.70 : x - Step 2: Convert to fraction form
18,235,979.70/27,353,969.55 = 17,396,171.70/x - Step 3: Cross multiply
18,235,979.70x = 27,353,969.55 × 17,396,171.70 - Step 4: Simplify right side
18,235,979.70x = 475,854,350,968,371.75 - Step 5: Solve for x
x = 475,854,350,968,371.75/18,235,979.70 - Step 6: Final answer
x = 26,094,257.55
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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.