Finding the Fourth Proportional to 20,180,939.68, 30,280,857.48 and 8,819,912.08
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Solution
The fourth proportional to 20,180,939.68, 30,280,857.48 and 8,819,912.08 is: 13,233,997.27
Step by Step Solution
- Step 1: Write the proportion equation
20,180,939.68 : 30,280,857.48 = 8,819,912.08 : x - Step 2: Convert to fraction form
20,180,939.68/30,280,857.48 = 8,819,912.08/x - Step 3: Cross multiply
20,180,939.68x = 30,280,857.48 × 8,819,912.08 - Step 4: Simplify right side
20,180,939.68x = 267,074,500,680,610.38 - Step 5: Solve for x
x = 267,074,500,680,610.38/20,180,939.68 - Step 6: Final answer
x = 13,233,997.27
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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.