Finding the Fourth Proportional to 3,901,415.36, 5,383,961.16 and 2,182,564.64
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Solution
The fourth proportional to 3,901,415.36, 5,383,961.16 and 2,182,564.64 is: 3,011,943.66
Step by Step Solution
- Step 1: Write the proportion equation
3,901,415.36 : 5,383,961.16 = 2,182,564.64 : x - Step 2: Convert to fraction form
3,901,415.36/5,383,961.16 = 2,182,564.64/x - Step 3: Cross multiply
3,901,415.36x = 5,383,961.16 × 2,182,564.64 - Step 4: Simplify right side
3,901,415.36x = 11,750,843,250,949.38 - Step 5: Solve for x
x = 11,750,843,250,949.38/3,901,415.36 - Step 6: Final answer
x = 3,011,943.66
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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.