Finding the Fourth Proportional to 12,277,722.54, 18,413,441.36 and 3,639,803.05
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Solution
The fourth proportional to 12,277,722.54, 18,413,441.36 and 3,639,803.05 is: 5,458,772.98
Step by Step Solution
- Step 1: Write the proportion equation
12,277,722.54 : 18,413,441.36 = 3,639,803.05 : x - Step 2: Convert to fraction form
12,277,722.54/18,413,441.36 = 3,639,803.05/x - Step 3: Cross multiply
12,277,722.54x = 18,413,441.36 × 3,639,803.05 - Step 4: Simplify right side
12,277,722.54x = 67,021,300,041,591.20 - Step 5: Solve for x
x = 67,021,300,041,591.20/12,277,722.54 - Step 6: Final answer
x = 5,458,772.98
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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.