Finding the Fourth Proportional to 7,131,489.60, 10,704,232.80 and 3,541,310.40
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Solution
The fourth proportional to 7,131,489.60, 10,704,232.80 and 3,541,310.40 is: 5,315,440.82
Step by Step Solution
- Step 1: Write the proportion equation
7,131,489.60 : 10,704,232.80 = 3,541,310.40 : x - Step 2: Convert to fraction form
7,131,489.60/10,704,232.80 = 3,541,310.40/x - Step 3: Cross multiply
7,131,489.60x = 10,704,232.80 × 3,541,310.40 - Step 4: Simplify right side
7,131,489.60x = 37,907,010,938,661.12 - Step 5: Solve for x
x = 37,907,010,938,661.12/7,131,489.60 - Step 6: Final answer
x = 5,315,440.82
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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.