Finding the Fourth Proportional to 4,920,793.20, 7,381,189.80 and 3,925,465.20
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Solution
The fourth proportional to 4,920,793.20, 7,381,189.80 and 3,925,465.20 is: 5,888,197.80
Step by Step Solution
- Step 1: Write the proportion equation
4,920,793.20 : 7,381,189.80 = 3,925,465.20 : x - Step 2: Convert to fraction form
4,920,793.20/7,381,189.80 = 3,925,465.20/x - Step 3: Cross multiply
4,920,793.20x = 7,381,189.80 × 3,925,465.20 - Step 4: Simplify right side
4,920,793.20x = 28,974,603,694,494.96 - Step 5: Solve for x
x = 28,974,603,694,494.96/4,920,793.20 - Step 6: Final answer
x = 5,888,197.80
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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.