Finding the Fourth Proportional to 5,378,505.75, 7,422,338.10 and 2,964,057.75
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Solution
The fourth proportional to 5,378,505.75, 7,422,338.10 and 2,964,057.75 is: 4,090,399.79
Step by Step Solution
- Step 1: Write the proportion equation
5,378,505.75 : 7,422,338.10 = 2,964,057.75 : x - Step 2: Convert to fraction form
5,378,505.75/7,422,338.10 = 2,964,057.75/x - Step 3: Cross multiply
5,378,505.75x = 7,422,338.10 × 2,964,057.75 - Step 4: Simplify right side
5,378,505.75x = 22,000,238,768,425.27 - Step 5: Solve for x
x = 22,000,238,768,425.27/5,378,505.75 - Step 6: Final answer
x = 4,090,399.79
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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.