Finding the Fourth Proportional to 3,959,948.62, 5,464,727.67 and 2,149,112.62
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Solution
The fourth proportional to 3,959,948.62, 5,464,727.67 and 2,149,112.62 is: 2,965,774.64
Step by Step Solution
- Step 1: Write the proportion equation
3,959,948.62 : 5,464,727.67 = 2,149,112.62 : x - Step 2: Convert to fraction form
3,959,948.62/5,464,727.67 = 2,149,112.62/x - Step 3: Cross multiply
3,959,948.62x = 5,464,727.67 × 2,149,112.62 - Step 4: Simplify right side
3,959,948.62x = 11,744,315,200,460.20 - Step 5: Solve for x
x = 11,744,315,200,460.20/3,959,948.62 - Step 6: Final answer
x = 2,965,774.64
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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.