Finding the Fourth Proportional to 22,128,189.70, 33,173,350.95 and 8,491,121.86
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Solution
The fourth proportional to 22,128,189.70, 33,173,350.95 and 8,491,121.86 is: 12,729,417.51
Step by Step Solution
- Step 1: Write the proportion equation
22,128,189.70 : 33,173,350.95 = 8,491,121.86 : x - Step 2: Convert to fraction form
22,128,189.70/33,173,350.95 = 8,491,121.86/x - Step 3: Cross multiply
22,128,189.70x = 33,173,350.95 × 8,491,121.86 - Step 4: Simplify right side
22,128,189.70x = 281,678,965,420,996.75 - Step 5: Solve for x
x = 281,678,965,420,996.75/22,128,189.70 - Step 6: Final answer
x = 12,729,417.51
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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.