Finding the Fourth Proportional to 18,203,455.40, 27,305,183.10 and 16,817,772.20
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Solution
The fourth proportional to 18,203,455.40, 27,305,183.10 and 16,817,772.20 is: 25,226,658.30
Step by Step Solution
- Step 1: Write the proportion equation
18,203,455.40 : 27,305,183.10 = 16,817,772.20 : x - Step 2: Convert to fraction form
18,203,455.40/27,305,183.10 = 16,817,772.20/x - Step 3: Cross multiply
18,203,455.40x = 27,305,183.10 × 16,817,772.20 - Step 4: Simplify right side
18,203,455.40x = 459,212,349,255,089.81 - Step 5: Solve for x
x = 459,212,349,255,089.81/18,203,455.40 - Step 6: Final answer
x = 25,226,658.30
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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.