Finding the Fourth Proportional to 12,605,087.28, 18,906,464.50 and 3,507,322.80
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Solution
The fourth proportional to 12,605,087.28, 18,906,464.50 and 3,507,322.80 is: 5,260,659.65
Step by Step Solution
- Step 1: Write the proportion equation
12,605,087.28 : 18,906,464.50 = 3,507,322.80 : x - Step 2: Convert to fraction form
12,605,087.28/18,906,464.50 = 3,507,322.80/x - Step 3: Cross multiply
12,605,087.28x = 18,906,464.50 × 3,507,322.80 - Step 4: Simplify right side
12,605,087.28x = 66,311,074,008,240.59 - Step 5: Solve for x
x = 66,311,074,008,240.59/12,605,087.28 - Step 6: Final answer
x = 5,260,659.65
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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.