Finding the Fourth Proportional to 20,759,352.21, 28,647,999.32 and 11,340,273.08
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Solution
The fourth proportional to 20,759,352.21, 28,647,999.32 and 11,340,273.08 is: 15,649,627.79
Step by Step Solution
- Step 1: Write the proportion equation
20,759,352.21 : 28,647,999.32 = 11,340,273.08 : x - Step 2: Convert to fraction form
20,759,352.21/28,647,999.32 = 11,340,273.08/x - Step 3: Cross multiply
20,759,352.21x = 28,647,999.32 × 11,340,273.08 - Step 4: Simplify right side
20,759,352.21x = 324,876,135,284,512.94 - Step 5: Solve for x
x = 324,876,135,284,512.94/20,759,352.21 - Step 6: Final answer
x = 15,649,627.79
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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.