Finding the Fourth Proportional to 5,470,571.32, 8,198,521.99 and 4,257,612.62
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Solution
The fourth proportional to 5,470,571.32, 8,198,521.99 and 4,257,612.62 is: 6,380,710.28
Step by Step Solution
- Step 1: Write the proportion equation
5,470,571.32 : 8,198,521.99 = 4,257,612.62 : x - Step 2: Convert to fraction form
5,470,571.32/8,198,521.99 = 4,257,612.62/x - Step 3: Cross multiply
5,470,571.32x = 8,198,521.99 × 4,257,612.62 - Step 4: Simplify right side
5,470,571.32x = 34,906,130,669,079.33 - Step 5: Solve for x
x = 34,906,130,669,079.33/5,470,571.32 - Step 6: Final answer
x = 6,380,710.28
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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.