Finding the Fourth Proportional to 3,959,949.12, 5,464,728.36 and 2,149,113.12
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Solution
The fourth proportional to 3,959,949.12, 5,464,728.36 and 2,149,113.12 is: 2,965,775.33
Step by Step Solution
- Step 1: Write the proportion equation
3,959,949.12 : 5,464,728.36 = 2,149,113.12 : x - Step 2: Convert to fraction form
3,959,949.12/5,464,728.36 = 2,149,113.12/x - Step 3: Cross multiply
3,959,949.12x = 5,464,728.36 × 2,149,113.12 - Step 4: Simplify right side
3,959,949.12x = 11,744,319,415,712.08 - Step 5: Solve for x
x = 11,744,319,415,712.08/3,959,949.12 - Step 6: Final answer
x = 2,965,775.33
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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.