Finding the Fourth Proportional to 82,983,497.51, 114,410,768.06 and 68,043,779.75
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Solution
The fourth proportional to 82,983,497.51, 114,410,768.06 and 68,043,779.75 is: 93,813,123.53
Step by Step Solution
- Step 1: Write the proportion equation
82,983,497.51 : 114,410,768.06 = 68,043,779.75 : x - Step 2: Convert to fraction form
82,983,497.51/114,410,768.06 = 68,043,779.75/x - Step 3: Cross multiply
82,983,497.51x = 114,410,768.06 × 68,043,779.75 - Step 4: Simplify right side
82,983,497.51x = 7,784,941,101,990,703 - Step 5: Solve for x
x = 7,784,941,101,990,703/82,983,497.51 - Step 6: Final answer
x = 93,813,123.53
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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.