Finding the Fourth Proportional to 5,168,321.87, 7,757,273.44 and 2,611,333.97
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Solution
The fourth proportional to 5,168,321.87, 7,757,273.44 and 2,611,333.97 is: 3,919,421.45
Step by Step Solution
- Step 1: Write the proportion equation
5,168,321.87 : 7,757,273.44 = 2,611,333.97 : x - Step 2: Convert to fraction form
5,168,321.87/7,757,273.44 = 2,611,333.97/x - Step 3: Cross multiply
5,168,321.87x = 7,757,273.44 × 2,611,333.97 - Step 4: Simplify right side
5,168,321.87x = 20,256,831,603,136.05 - Step 5: Solve for x
x = 20,256,831,603,136.05/5,168,321.87 - Step 6: Final answer
x = 3,919,421.45
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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.