Finding the Fourth Proportional to 6,991,138.72, 10,486,708.84 and 2,133,470.69
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Solution
The fourth proportional to 6,991,138.72, 10,486,708.84 and 2,133,470.69 is: 3,200,206.27
Step by Step Solution
- Step 1: Write the proportion equation
6,991,138.72 : 10,486,708.84 = 2,133,470.69 : x - Step 2: Convert to fraction form
6,991,138.72/10,486,708.84 = 2,133,470.69/x - Step 3: Cross multiply
6,991,138.72x = 10,486,708.84 × 2,133,470.69 - Step 4: Simplify right side
6,991,138.72x = 22,373,085,993,250.09 - Step 5: Solve for x
x = 22,373,085,993,250.09/6,991,138.72 - Step 6: Final answer
x = 3,200,206.27
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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.