Finding the Fourth Proportional to 3,643,405.20, 5,465,107.80 and 2,131,750.80
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Solution
The fourth proportional to 3,643,405.20, 5,465,107.80 and 2,131,750.80 is: 3,197,626.20
Step by Step Solution
- Step 1: Write the proportion equation
3,643,405.20 : 5,465,107.80 = 2,131,750.80 : x - Step 2: Convert to fraction form
3,643,405.20/5,465,107.80 = 2,131,750.80/x - Step 3: Cross multiply
3,643,405.20x = 5,465,107.80 × 2,131,750.80 - Step 4: Simplify right side
3,643,405.20x = 11,650,247,924,736.24 - Step 5: Solve for x
x = 11,650,247,924,736.24/3,643,405.20 - Step 6: Final answer
x = 3,197,626.20
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1.5x scale
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.