Finding the Fourth Proportional to 5,230,249.33, 7,845,452.25 and 1,991,965.84
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Solution
The fourth proportional to 5,230,249.33, 7,845,452.25 and 1,991,965.84 is: 2,987,978.56
Step by Step Solution
- Step 1: Write the proportion equation
5,230,249.33 : 7,845,452.25 = 1,991,965.84 : x - Step 2: Convert to fraction form
5,230,249.33/7,845,452.25 = 1,991,965.84/x - Step 3: Cross multiply
5,230,249.33x = 7,845,452.25 × 1,991,965.84 - Step 4: Simplify right side
5,230,249.33x = 15,627,872,847,027.29 - Step 5: Solve for x
x = 15,627,872,847,027.29/5,230,249.33 - Step 6: Final answer
x = 2,987,978.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.