Finding the Fourth Proportional to 639,324,846.12, 882,268,289.10 and 345,969,414.12
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Solution
The fourth proportional to 639,324,846.12, 882,268,289.10 and 345,969,414.12 is: 477,437,792.27
Step by Step Solution
- Step 1: Write the proportion equation
639,324,846.12 : 882,268,289.10 = 345,969,414.12 : x - Step 2: Convert to fraction form
639,324,846.12/882,268,289.10 = 345,969,414.12/x - Step 3: Cross multiply
639,324,846.12x = 882,268,289.10 × 345,969,414.12 - Step 4: Simplify right side
639,324,846.12x = 305,237,843,076,581,824 - Step 5: Solve for x
x = 305,237,843,076,581,824/639,324,846.12 - Step 6: Final answer
x = 477,437,792.27
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.