Finding the Fourth Proportional to 7,279,896.80, 10,046,311.50 and 4,016,832.65
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Solution
The fourth proportional to 7,279,896.80, 10,046,311.50 and 4,016,832.65 is: 5,543,258.80
Step by Step Solution
- Step 1: Write the proportion equation
7,279,896.80 : 10,046,311.50 = 4,016,832.65 : x - Step 2: Convert to fraction form
7,279,896.80/10,046,311.50 = 4,016,832.65/x - Step 3: Cross multiply
7,279,896.80x = 10,046,311.50 × 4,016,832.65 - Step 4: Simplify right side
7,279,896.80x = 40,354,351,995,038.91 - Step 5: Solve for x
x = 40,354,351,995,038.91/7,279,896.80 - Step 6: Final answer
x = 5,543,258.80
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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.