Finding the Fourth Proportional to 4,206,474.20, 6,311,679.60 and 2,186,998.40
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Solution
The fourth proportional to 4,206,474.20, 6,311,679.60 and 2,186,998.40 is: 3,281,520.94
Step by Step Solution
- Step 1: Write the proportion equation
4,206,474.20 : 6,311,679.60 = 2,186,998.40 : x - Step 2: Convert to fraction form
4,206,474.20/6,311,679.60 = 2,186,998.40/x - Step 3: Cross multiply
4,206,474.20x = 6,311,679.60 × 2,186,998.40 - Step 4: Simplify right side
4,206,474.20x = 13,803,633,186,512.64 - Step 5: Solve for x
x = 13,803,633,186,512.64/4,206,474.20 - Step 6: Final answer
x = 3,281,520.94
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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.