Finding the Fourth Proportional to 4,068,212.80, 6,102,319.20 and 2,155,025.20
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Solution
The fourth proportional to 4,068,212.80, 6,102,319.20 and 2,155,025.20 is: 3,232,537.80
Step by Step Solution
- Step 1: Write the proportion equation
4,068,212.80 : 6,102,319.20 = 2,155,025.20 : x - Step 2: Convert to fraction form
4,068,212.80/6,102,319.20 = 2,155,025.20/x - Step 3: Cross multiply
4,068,212.80x = 6,102,319.20 × 2,155,025.20 - Step 4: Simplify right side
4,068,212.80x = 13,150,651,654,443.84 - Step 5: Solve for x
x = 13,150,651,654,443.84/4,068,212.80 - Step 6: Final answer
x = 3,232,537.80
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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.