Finding the Fourth Proportional to 8,431,771.36, 12,645,765.76 and 3,878,447.44
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Solution
The fourth proportional to 8,431,771.36, 12,645,765.76 and 3,878,447.44 is: 5,816,801.21
Step by Step Solution
- Step 1: Write the proportion equation
8,431,771.36 : 12,645,765.76 = 3,878,447.44 : x - Step 2: Convert to fraction form
8,431,771.36/12,645,765.76 = 3,878,447.44/x - Step 3: Cross multiply
8,431,771.36x = 12,645,765.76 × 3,878,447.44 - Step 4: Simplify right side
8,431,771.36x = 49,045,937,838,711.66 - Step 5: Solve for x
x = 49,045,937,838,711.66/8,431,771.36 - Step 6: Final answer
x = 5,816,801.21
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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.