Finding the Fourth Proportional to 18,468,052.20, 27,702,078.30 and 18,216,109.80
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Solution
The fourth proportional to 18,468,052.20, 27,702,078.30 and 18,216,109.80 is: 27,324,164.70
Step by Step Solution
- Step 1: Write the proportion equation
18,468,052.20 : 27,702,078.30 = 18,216,109.80 : x - Step 2: Convert to fraction form
18,468,052.20/27,702,078.30 = 18,216,109.80/x - Step 3: Cross multiply
18,468,052.20x = 27,702,078.30 × 18,216,109.80 - Step 4: Simplify right side
18,468,052.20x = 504,624,100,000,997.38 - Step 5: Solve for x
x = 504,624,100,000,997.38/18,468,052.20 - Step 6: Final answer
x = 27,324,164.70
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1.5x scale
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.