Finding the Fourth Proportional to 20,233,404.70, 30,350,107.05 and 18,107,640.70
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Solution
The fourth proportional to 20,233,404.70, 30,350,107.05 and 18,107,640.70 is: 27,161,461.05
Step by Step Solution
- Step 1: Write the proportion equation
20,233,404.70 : 30,350,107.05 = 18,107,640.70 : x - Step 2: Convert to fraction form
20,233,404.70/30,350,107.05 = 18,107,640.70/x - Step 3: Cross multiply
20,233,404.70x = 30,350,107.05 × 18,107,640.70 - Step 4: Simplify right side
20,233,404.70x = 549,568,833,667,936.94 - Step 5: Solve for x
x = 549,568,833,667,936.94/20,233,404.70 - Step 6: Final answer
x = 27,161,461.05
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Similar ratio
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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.