Finding the Fourth Proportional to 82,311,879.12, 113,582,205.24 and 47,515,779.48
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Solution
The fourth proportional to 82,311,879.12, 113,582,205.24 and 47,515,779.48 is: 65,567,049.07
Step by Step Solution
- Step 1: Write the proportion equation
82,311,879.12 : 113,582,205.24 = 47,515,779.48 : x - Step 2: Convert to fraction form
82,311,879.12/113,582,205.24 = 47,515,779.48/x - Step 3: Cross multiply
82,311,879.12x = 113,582,205.24 × 47,515,779.48 - Step 4: Simplify right side
82,311,879.12x = 5,396,947,017,035,940 - Step 5: Solve for x
x = 5,396,947,017,035,940/82,311,879.12 - Step 6: Final answer
x = 65,567,049.07
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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.