Finding the Fourth Proportional to 202,128,664.40, 303,192,996.60 and 186,823,163.60
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Solution
The fourth proportional to 202,128,664.40, 303,192,996.60 and 186,823,163.60 is: 280,234,745.40
Step by Step Solution
- Step 1: Write the proportion equation
202,128,664.40 : 303,192,996.60 = 186,823,163.60 : x - Step 2: Convert to fraction form
202,128,664.40/303,192,996.60 = 186,823,163.60/x - Step 3: Cross multiply
202,128,664.40x = 303,192,996.60 × 186,823,163.60 - Step 4: Simplify right side
202,128,664.40x = 56,643,474,806,176,048 - Step 5: Solve for x
x = 56,643,474,806,176,048/202,128,664.40 - Step 6: Final answer
x = 280,234,745.40
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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.