Finding the Fourth Proportional to 5,179,324.74, 7,147,311.69 and 2,856,216.06
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Solution
The fourth proportional to 5,179,324.74, 7,147,311.69 and 2,856,216.06 is: 3,941,491.89
Step by Step Solution
- Step 1: Write the proportion equation
5,179,324.74 : 7,147,311.69 = 2,856,216.06 : x - Step 2: Convert to fraction form
5,179,324.74/7,147,311.69 = 2,856,216.06/x - Step 3: Cross multiply
5,179,324.74x = 7,147,311.69 × 2,856,216.06 - Step 4: Simplify right side
5,179,324.74x = 20,414,266,434,803.74 - Step 5: Solve for x
x = 20,414,266,434,803.74/5,179,324.74 - Step 6: Final answer
x = 3,941,491.89
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1.5x scale
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.