Finding the Fourth Proportional to 8,211,720.64, 11,331,716 and 4,540,425.28
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Solution
The fourth proportional to 8,211,720.64, 11,331,716 and 4,540,425.28 is: 6,265,533.38
Step by Step Solution
- Step 1: Write the proportion equation
8,211,720.64 : 11,331,716 = 4,540,425.28 : x - Step 2: Convert to fraction form
8,211,720.64/11,331,716 = 4,540,425.28/x - Step 3: Cross multiply
8,211,720.64x = 11,331,716 × 4,540,425.28 - Step 4: Simplify right side
8,211,720.64x = 51,450,809,792,180.48 - Step 5: Solve for x
x = 51,450,809,792,180.48/8,211,720.64 - Step 6: Final answer
x = 6,265,533.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.