Finding the Fourth Proportional to 4,686,712.20, 7,023,190.44 and 2,641,354.60
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Solution
The fourth proportional to 4,686,712.20, 7,023,190.44 and 2,641,354.60 is: 3,958,155.65
Step by Step Solution
- Step 1: Write the proportion equation
4,686,712.20 : 7,023,190.44 = 2,641,354.60 : x - Step 2: Convert to fraction form
4,686,712.20/7,023,190.44 = 2,641,354.60/x - Step 3: Cross multiply
4,686,712.20x = 7,023,190.44 × 2,641,354.60 - Step 4: Simplify right side
4,686,712.20x = 18,550,736,375,370.03 - Step 5: Solve for x
x = 18,550,736,375,370.03/4,686,712.20 - Step 6: Final answer
x = 3,958,155.65
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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.