Finding the Fourth Proportional to 10,022,621.19, 13,831,217.34 and 5,438,942.56
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Solution
The fourth proportional to 10,022,621.19, 13,831,217.34 and 5,438,942.56 is: 7,505,740.79
Step by Step Solution
- Step 1: Write the proportion equation
10,022,621.19 : 13,831,217.34 = 5,438,942.56 : x - Step 2: Convert to fraction form
10,022,621.19/13,831,217.34 = 5,438,942.56/x - Step 3: Cross multiply
10,022,621.19x = 13,831,217.34 × 5,438,942.56 - Step 4: Simplify right side
10,022,621.19x = 75,227,196,644,028.98 - Step 5: Solve for x
x = 75,227,196,644,028.98/10,022,621.19 - Step 6: Final answer
x = 7,505,740.79
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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.