Finding the Fourth Proportional to 7,507,678.40, 11,261,517.60 and 2,716,107.20
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Solution
The fourth proportional to 7,507,678.40, 11,261,517.60 and 2,716,107.20 is: 4,074,160.80
Step by Step Solution
- Step 1: Write the proportion equation
7,507,678.40 : 11,261,517.60 = 2,716,107.20 : x - Step 2: Convert to fraction form
7,507,678.40/11,261,517.60 = 2,716,107.20/x - Step 3: Cross multiply
7,507,678.40x = 11,261,517.60 × 2,716,107.20 - Step 4: Simplify right side
7,507,678.40x = 30,587,489,036,286.72 - Step 5: Solve for x
x = 30,587,489,036,286.72/7,507,678.40 - Step 6: Final answer
x = 4,074,160.80
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1.5x scale
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.