Finding the Fourth Proportional to 5,128,713.13, 7,680,741.18 and 2,933,629.88
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Solution
The fourth proportional to 5,128,713.13, 7,680,741.18 and 2,933,629.88 is: 4,393,392.90
Step by Step Solution
- Step 1: Write the proportion equation
5,128,713.13 : 7,680,741.18 = 2,933,629.88 : x - Step 2: Convert to fraction form
5,128,713.13/7,680,741.18 = 2,933,629.88/x - Step 3: Cross multiply
5,128,713.13x = 7,680,741.18 × 2,933,629.88 - Step 4: Simplify right side
5,128,713.13x = 22,532,451,826,194.46 - Step 5: Solve for x
x = 22,532,451,826,194.46/5,128,713.13 - Step 6: Final answer
x = 4,393,392.90
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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.