Finding the Fourth Proportional to 3,959,578.16, 5,464,221.36 and 2,148,742.16
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Solution
The fourth proportional to 3,959,578.16, 5,464,221.36 and 2,148,742.16 is: 2,965,266.08
Step by Step Solution
- Step 1: Write the proportion equation
3,959,578.16 : 5,464,221.36 = 2,148,742.16 : x - Step 2: Convert to fraction form
3,959,578.16/5,464,221.36 = 2,148,742.16/x - Step 3: Cross multiply
3,959,578.16x = 5,464,221.36 × 2,148,742.16 - Step 4: Simplify right side
3,959,578.16x = 11,741,202,807,804.54 - Step 5: Solve for x
x = 11,741,202,807,804.54/3,959,578.16 - Step 6: Final answer
x = 2,965,266.08
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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.