Finding the Fourth Proportional to 3,313,138.90, 4,969,708.35 and 2,118,745.30
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Solution
The fourth proportional to 3,313,138.90, 4,969,708.35 and 2,118,745.30 is: 3,178,117.95
Step by Step Solution
- Step 1: Write the proportion equation
3,313,138.90 : 4,969,708.35 = 2,118,745.30 : x - Step 2: Convert to fraction form
3,313,138.90/4,969,708.35 = 2,118,745.30/x - Step 3: Cross multiply
3,313,138.90x = 4,969,708.35 × 2,118,745.30 - Step 4: Simplify right side
3,313,138.90x = 10,529,546,208,933.25 - Step 5: Solve for x
x = 10,529,546,208,933.25/3,313,138.90 - Step 6: Final answer
x = 3,178,117.95
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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.