Finding the Fourth Proportional to 108,631,168.42, 149,906,450.36 and 61,591,406.62
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Solution
The fourth proportional to 108,631,168.42, 149,906,450.36 and 61,591,406.62 is: 84,993,554.55
Step by Step Solution
- Step 1: Write the proportion equation
108,631,168.42 : 149,906,450.36 = 61,591,406.62 : x - Step 2: Convert to fraction form
108,631,168.42/149,906,450.36 = 61,591,406.62/x - Step 3: Cross multiply
108,631,168.42x = 149,906,450.36 × 61,591,406.62 - Step 4: Simplify right side
108,631,168.42x = 9,232,949,139,083,606 - Step 5: Solve for x
x = 9,232,949,139,083,606/108,631,168.42 - Step 6: Final answer
x = 84,993,554.55
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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.