Finding the Fourth Proportional to 20,587,467.68, 30,882,640.08 and 8,457,542.72
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Solution
The fourth proportional to 20,587,467.68, 30,882,640.08 and 8,457,542.72 is: 12,686,905.06
Step by Step Solution
- Step 1: Write the proportion equation
20,587,467.68 : 30,882,640.08 = 8,457,542.72 : x - Step 2: Convert to fraction form
20,587,467.68/30,882,640.08 = 8,457,542.72/x - Step 3: Cross multiply
20,587,467.68x = 30,882,640.08 × 8,457,542.72 - Step 4: Simplify right side
20,587,467.68x = 261,191,247,782,984.22 - Step 5: Solve for x
x = 261,191,247,782,984.22/20,587,467.68 - Step 6: Final answer
x = 12,686,905.06
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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.