Finding the Fourth Proportional to 18,101,490.70, 27,149,611.65 and 5,320,662.70
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Solution
The fourth proportional to 18,101,490.70, 27,149,611.65 and 5,320,662.70 is: 7,980,222.65
Step by Step Solution
- Step 1: Write the proportion equation
18,101,490.70 : 27,149,611.65 = 5,320,662.70 : x - Step 2: Convert to fraction form
18,101,490.70/27,149,611.65 = 5,320,662.70/x - Step 3: Cross multiply
18,101,490.70x = 27,149,611.65 × 5,320,662.70 - Step 4: Simplify right side
18,101,490.70x = 144,453,926,025,640.44 - Step 5: Solve for x
x = 144,453,926,025,640.44/18,101,490.70 - Step 6: Final answer
x = 7,980,222.65
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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.