Finding the Fourth Proportional to 5,180,698.20, 7,770,347.46 and 1,394,408.28
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Solution
The fourth proportional to 5,180,698.20, 7,770,347.46 and 1,394,408.28 is: 2,091,424.05
Step by Step Solution
- Step 1: Write the proportion equation
5,180,698.20 : 7,770,347.46 = 1,394,408.28 : x - Step 2: Convert to fraction form
5,180,698.20/7,770,347.46 = 1,394,408.28/x - Step 3: Cross multiply
5,180,698.20x = 7,770,347.46 × 1,394,408.28 - Step 4: Simplify right side
5,180,698.20x = 10,835,036,836,700.97 - Step 5: Solve for x
x = 10,835,036,836,700.97/5,180,698.20 - Step 6: Final answer
x = 2,091,424.05
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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.