Finding the Fourth Proportional to 18,783,036.70, 28,174,555.05 and 9,193,479.10
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Solution
The fourth proportional to 18,783,036.70, 28,174,555.05 and 9,193,479.10 is: 13,790,218.65
Step by Step Solution
- Step 1: Write the proportion equation
18,783,036.70 : 28,174,555.05 = 9,193,479.10 : x - Step 2: Convert to fraction form
18,783,036.70/28,174,555.05 = 9,193,479.10/x - Step 3: Cross multiply
18,783,036.70x = 28,174,555.05 × 9,193,479.10 - Step 4: Simplify right side
18,783,036.70x = 259,022,183,003,974.44 - Step 5: Solve for x
x = 259,022,183,003,974.44/18,783,036.70 - Step 6: Final answer
x = 13,790,218.65
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Similar ratio
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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.