Finding the Fourth Proportional to 5,438,738.40, 8,158,107.60 and 1,651,729.20
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Solution
The fourth proportional to 5,438,738.40, 8,158,107.60 and 1,651,729.20 is: 2,477,593.80
Step by Step Solution
- Step 1: Write the proportion equation
5,438,738.40 : 8,158,107.60 = 1,651,729.20 : x - Step 2: Convert to fraction form
5,438,738.40/8,158,107.60 = 1,651,729.20/x - Step 3: Cross multiply
5,438,738.40x = 8,158,107.60 × 1,651,729.20 - Step 4: Simplify right side
5,438,738.40x = 13,474,984,539,661.92 - Step 5: Solve for x
x = 13,474,984,539,661.92/5,438,738.40 - Step 6: Final answer
x = 2,477,593.80
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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.