Finding the Fourth Proportional to 5,471,742.80, 8,207,614.20 and 4,212,030.80
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Solution
The fourth proportional to 5,471,742.80, 8,207,614.20 and 4,212,030.80 is: 6,318,046.20
Step by Step Solution
- Step 1: Write the proportion equation
5,471,742.80 : 8,207,614.20 = 4,212,030.80 : x - Step 2: Convert to fraction form
5,471,742.80/8,207,614.20 = 4,212,030.80/x - Step 3: Cross multiply
5,471,742.80x = 8,207,614.20 × 4,212,030.80 - Step 4: Simplify right side
5,471,742.80x = 34,570,723,804,917.36 - Step 5: Solve for x
x = 34,570,723,804,917.36/5,471,742.80 - Step 6: Final answer
x = 6,318,046.20
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1.5x scale
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.