Finding the Fourth Proportional to 27,290,163.70, 40,810,910.47 and 20,378,496.70
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Solution
The fourth proportional to 27,290,163.70, 40,810,910.47 and 20,378,496.70 is: 30,474,899.80
Step by Step Solution
- Step 1: Write the proportion equation
27,290,163.70 : 40,810,910.47 = 20,378,496.70 : x - Step 2: Convert to fraction form
27,290,163.70/40,810,910.47 = 20,378,496.70/x - Step 3: Cross multiply
27,290,163.70x = 40,810,910.47 × 20,378,496.70 - Step 4: Simplify right side
27,290,163.70x = 831,665,004,183,917 - Step 5: Solve for x
x = 831,665,004,183,917/27,290,163.70 - Step 6: Final answer
x = 30,474,899.80
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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.