Finding the Fourth Proportional to 3,768,939.24, 5,202,059.94 and 2,138,301.12
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Solution
The fourth proportional to 3,768,939.24, 5,202,059.94 and 2,138,301.12 is: 2,951,379.66
Step by Step Solution
- Step 1: Write the proportion equation
3,768,939.24 : 5,202,059.94 = 2,138,301.12 : x - Step 2: Convert to fraction form
3,768,939.24/5,202,059.94 = 2,138,301.12/x - Step 3: Cross multiply
3,768,939.24x = 5,202,059.94 × 2,138,301.12 - Step 4: Simplify right side
3,768,939.24x = 11,123,570,596,009.13 - Step 5: Solve for x
x = 11,123,570,596,009.13/3,768,939.24 - Step 6: Final answer
x = 2,951,379.66
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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.