Finding the Fourth Proportional to 108,485,184.12, 149,667,361.56 and 61,431,456.12
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Solution
The fourth proportional to 108,485,184.12, 149,667,361.56 and 61,431,456.12 is: 84,751,517.26
Step by Step Solution
- Step 1: Write the proportion equation
108,485,184.12 : 149,667,361.56 = 61,431,456.12 : x - Step 2: Convert to fraction form
108,485,184.12/149,667,361.56 = 61,431,456.12/x - Step 3: Cross multiply
108,485,184.12x = 149,667,361.56 × 61,431,456.12 - Step 4: Simplify right side
108,485,184.12x = 9,194,283,954,269,314 - Step 5: Solve for x
x = 9,194,283,954,269,314/108,485,184.12 - Step 6: Final answer
x = 84,751,517.26
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1.5x scale
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.