Finding the Fourth Proportional to 5,470,015.40, 8,212,410.30 and 3,197,868.20
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Solution
The fourth proportional to 5,470,015.40, 8,212,410.30 and 3,197,868.20 is: 4,801,120.99
Step by Step Solution
- Step 1: Write the proportion equation
5,470,015.40 : 8,212,410.30 = 3,197,868.20 : x - Step 2: Convert to fraction form
5,470,015.40/8,212,410.30 = 3,197,868.20/x - Step 3: Cross multiply
5,470,015.40x = 8,212,410.30 × 3,197,868.20 - Step 4: Simplify right side
5,470,015.40x = 26,262,205,743,722.46 - Step 5: Solve for x
x = 26,262,205,743,722.46/5,470,015.40 - Step 6: Final answer
x = 4,801,120.99
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1.5x scale
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.