Finding the Fourth Proportional to 12,138,624.40, 18,207,936.60 and 3,163,176.40
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Solution
The fourth proportional to 12,138,624.40, 18,207,936.60 and 3,163,176.40 is: 4,744,764.60
Step by Step Solution
- Step 1: Write the proportion equation
12,138,624.40 : 18,207,936.60 = 3,163,176.40 : x - Step 2: Convert to fraction form
12,138,624.40/18,207,936.60 = 3,163,176.40/x - Step 3: Cross multiply
12,138,624.40x = 18,207,936.60 × 3,163,176.40 - Step 4: Simplify right side
12,138,624.40x = 57,594,915,345,816.24 - Step 5: Solve for x
x = 57,594,915,345,816.24/12,138,624.40 - Step 6: Final answer
x = 4,744,764.60
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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.