Finding the Fourth Proportional to 69,823,906.92, 104,738,808.21 and 20,639,872.75
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Solution
The fourth proportional to 69,823,906.92, 104,738,808.21 and 20,639,872.75 is: 30,960,680.50
Step by Step Solution
- Step 1: Write the proportion equation
69,823,906.92 : 104,738,808.21 = 20,639,872.75 : x - Step 2: Convert to fraction form
69,823,906.92/104,738,808.21 = 20,639,872.75/x - Step 3: Cross multiply
69,823,906.92x = 104,738,808.21 × 20,639,872.75 - Step 4: Simplify right side
69,823,906.92x = 2,161,795,673,441,055.25 - Step 5: Solve for x
x = 2,161,795,673,441,055.25/69,823,906.92 - Step 6: Final answer
x = 30,960,680.50
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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.