Finding the Fourth Proportional to 8,189,751.28, 11,302,198.56 and 4,518,905.95
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Solution
The fourth proportional to 8,189,751.28, 11,302,198.56 and 4,518,905.95 is: 6,236,278.80
Step by Step Solution
- Step 1: Write the proportion equation
8,189,751.28 : 11,302,198.56 = 4,518,905.95 : x - Step 2: Convert to fraction form
8,189,751.28/11,302,198.56 = 4,518,905.95/x - Step 3: Cross multiply
8,189,751.28x = 11,302,198.56 × 4,518,905.95 - Step 4: Simplify right side
8,189,751.28x = 51,073,572,320,865.44 - Step 5: Solve for x
x = 51,073,572,320,865.44/8,189,751.28 - Step 6: Final answer
x = 6,236,278.80
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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.