Finding the Fourth Proportional to 5,478,589.78, 8,212,541.91 and 2,284,630.18
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Solution
The fourth proportional to 5,478,589.78, 8,212,541.91 and 2,284,630.18 is: 3,424,717.28
Step by Step Solution
- Step 1: Write the proportion equation
5,478,589.78 : 8,212,541.91 = 2,284,630.18 : x - Step 2: Convert to fraction form
5,478,589.78/8,212,541.91 = 2,284,630.18/x - Step 3: Cross multiply
5,478,589.78x = 8,212,541.91 × 2,284,630.18 - Step 4: Simplify right side
5,478,589.78x = 18,762,621,102,100.84 - Step 5: Solve for x
x = 18,762,621,102,100.84/5,478,589.78 - Step 6: Final answer
x = 3,424,717.28
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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.