Finding the Fourth Proportional to 4,202,169.20, 6,288,738.60 and 2,520,479.60
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Solution
The fourth proportional to 4,202,169.20, 6,288,738.60 and 2,520,479.60 is: 3,772,013.12
Step by Step Solution
- Step 1: Write the proportion equation
4,202,169.20 : 6,288,738.60 = 2,520,479.60 : x - Step 2: Convert to fraction form
4,202,169.20/6,288,738.60 = 2,520,479.60/x - Step 3: Cross multiply
4,202,169.20x = 6,288,738.60 × 2,520,479.60 - Step 4: Simplify right side
4,202,169.20x = 15,850,637,351,032.56 - Step 5: Solve for x
x = 15,850,637,351,032.56/4,202,169.20 - Step 6: Final answer
x = 3,772,013.12
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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.