Finding the Fourth Proportional to 351,362,912.97, 484,880,865.89 and 194,740,131.81
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Solution
The fourth proportional to 351,362,912.97, 484,880,865.89 and 194,740,131.81 is: 268,741,407.39
Step by Step Solution
- Step 1: Write the proportion equation
351,362,912.97 : 484,880,865.89 = 194,740,131.81 : x - Step 2: Convert to fraction form
351,362,912.97/484,880,865.89 = 194,740,131.81/x - Step 3: Cross multiply
351,362,912.97x = 484,880,865.89 × 194,740,131.81 - Step 4: Simplify right side
351,362,912.97x = 94,425,763,734,591,824 - Step 5: Solve for x
x = 94,425,763,734,591,824/351,362,912.97 - Step 6: Final answer
x = 268,741,407.39
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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.