Finding the Fourth Proportional to 5,540,378.21, 7,647,762.23 and 3,335,343.59
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Solution
The fourth proportional to 5,540,378.21, 7,647,762.23 and 3,335,343.59 is: 4,604,002.42
Step by Step Solution
- Step 1: Write the proportion equation
5,540,378.21 : 7,647,762.23 = 3,335,343.59 : x - Step 2: Convert to fraction form
5,540,378.21/7,647,762.23 = 3,335,343.59/x - Step 3: Cross multiply
5,540,378.21x = 7,647,762.23 × 3,335,343.59 - Step 4: Simplify right side
5,540,378.21x = 25,507,914,676,759.07 - Step 5: Solve for x
x = 25,507,914,676,759.07/5,540,378.21 - Step 6: Final answer
x = 4,604,002.42
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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.