Finding the Fourth Proportional to 4,178,873.88, 5,768,077.77 and 2,728,795.68
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Solution
The fourth proportional to 4,178,873.88, 5,768,077.77 and 2,728,795.68 is: 3,766,542.41
Step by Step Solution
- Step 1: Write the proportion equation
4,178,873.88 : 5,768,077.77 = 2,728,795.68 : x - Step 2: Convert to fraction form
4,178,873.88/5,768,077.77 = 2,728,795.68/x - Step 3: Cross multiply
4,178,873.88x = 5,768,077.77 × 2,728,795.68 - Step 4: Simplify right side
4,178,873.88x = 15,739,905,700,680.03 - Step 5: Solve for x
x = 15,739,905,700,680.03/4,178,873.88 - Step 6: Final answer
x = 3,766,542.41
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.