Finding the Fourth Proportional to 12,303,767.20, 18,450,121.20 and 4,728,215.20
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Solution
The fourth proportional to 12,303,767.20, 18,450,121.20 and 4,728,215.20 is: 7,090,197.83
Step by Step Solution
- Step 1: Write the proportion equation
12,303,767.20 : 18,450,121.20 = 4,728,215.20 : x - Step 2: Convert to fraction form
12,303,767.20/18,450,121.20 = 4,728,215.20/x - Step 3: Cross multiply
12,303,767.20x = 18,450,121.20 × 4,728,215.20 - Step 4: Simplify right side
12,303,767.20x = 87,236,143,499,682.23 - Step 5: Solve for x
x = 87,236,143,499,682.23/12,303,767.20 - Step 6: Final answer
x = 7,090,197.83
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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.