Finding the Fourth Proportional to 5,120,373.64, 7,680,532.68 and 2,087,727.70
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Solution
The fourth proportional to 5,120,373.64, 7,680,532.68 and 2,087,727.70 is: 3,131,580.22
Step by Step Solution
- Step 1: Write the proportion equation
5,120,373.64 : 7,680,532.68 = 2,087,727.70 : x - Step 2: Convert to fraction form
5,120,373.64/7,680,532.68 = 2,087,727.70/x - Step 3: Cross multiply
5,120,373.64x = 7,680,532.68 × 2,087,727.70 - Step 4: Simplify right side
5,120,373.64x = 16,034,860,826,791.23 - Step 5: Solve for x
x = 16,034,860,826,791.23/5,120,373.64 - Step 6: Final answer
x = 3,131,580.22
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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.