Finding the Fourth Proportional to 5,328,821.44, 7,995,239.34 and 3,200,389.48
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Solution
The fourth proportional to 5,328,821.44, 7,995,239.34 and 3,200,389.48 is: 4,801,789.69
Step by Step Solution
- Step 1: Write the proportion equation
5,328,821.44 : 7,995,239.34 = 3,200,389.48 : x - Step 2: Convert to fraction form
5,328,821.44/7,995,239.34 = 3,200,389.48/x - Step 3: Cross multiply
5,328,821.44x = 7,995,239.34 × 3,200,389.48 - Step 4: Simplify right side
5,328,821.44x = 25,587,879,873,818.14 - Step 5: Solve for x
x = 25,587,879,873,818.14/5,328,821.44 - Step 6: Final answer
x = 4,801,789.69
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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.