Finding the Fourth Proportional to 4,128,486.30, 6,192,729.45 and 3,278,180.70
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Solution
The fourth proportional to 4,128,486.30, 6,192,729.45 and 3,278,180.70 is: 4,917,271.05
Step by Step Solution
- Step 1: Write the proportion equation
4,128,486.30 : 6,192,729.45 = 3,278,180.70 : x - Step 2: Convert to fraction form
4,128,486.30/6,192,729.45 = 3,278,180.70/x - Step 3: Cross multiply
4,128,486.30x = 6,192,729.45 × 3,278,180.70 - Step 4: Simplify right side
4,128,486.30x = 20,300,886,163,311.62 - Step 5: Solve for x
x = 20,300,886,163,311.62/4,128,486.30 - Step 6: Final answer
x = 4,917,271.05
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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.