Finding the Fourth Proportional to 13,347,540.09, 18,419,750.36 and 7,841,147.03
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Solution
The fourth proportional to 13,347,540.09, 18,419,750.36 and 7,841,147.03 is: 10,820,868.09
Step by Step Solution
- Step 1: Write the proportion equation
13,347,540.09 : 18,419,750.36 = 7,841,147.03 : x - Step 2: Convert to fraction form
13,347,540.09/18,419,750.36 = 7,841,147.03/x - Step 3: Cross multiply
13,347,540.09x = 18,419,750.36 × 7,841,147.03 - Step 4: Simplify right side
13,347,540.09x = 144,431,970,697,350.97 - Step 5: Solve for x
x = 144,431,970,697,350.97/13,347,540.09 - Step 6: Final answer
x = 10,820,868.09
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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.