Finding the Fourth Proportional to 126,198,545.91, 189,322,361.10 and 48,469,763.81
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Solution
The fourth proportional to 126,198,545.91, 189,322,361.10 and 48,469,763.81 is: 72,714,071.79
Step by Step Solution
- Step 1: Write the proportion equation
126,198,545.91 : 189,322,361.10 = 48,469,763.81 : x - Step 2: Convert to fraction form
126,198,545.91/189,322,361.10 = 48,469,763.81/x - Step 3: Cross multiply
126,198,545.91x = 189,322,361.10 × 48,469,763.81 - Step 4: Simplify right side
126,198,545.91x = 9,176,410,126,941,838 - Step 5: Solve for x
x = 9,176,410,126,941,838/126,198,545.91 - Step 6: Final answer
x = 72,714,071.79
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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.