Finding the Fourth Proportional to 13,548,534.33, 18,682,844.45 and 8,040,845.09
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Solution
The fourth proportional to 13,548,534.33, 18,682,844.45 and 8,040,845.09 is: 11,087,978.55
Step by Step Solution
- Step 1: Write the proportion equation
13,548,534.33 : 18,682,844.45 = 8,040,845.09 : x - Step 2: Convert to fraction form
13,548,534.33/18,682,844.45 = 8,040,845.09/x - Step 3: Cross multiply
13,548,534.33x = 18,682,844.45 × 8,040,845.09 - Step 4: Simplify right side
13,548,534.33x = 150,225,858,063,016.25 - Step 5: Solve for x
x = 150,225,858,063,016.25/13,548,534.33 - Step 6: Final answer
x = 11,087,978.55
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1.5x scale
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.