Finding the Fourth Proportional to 82,998,438.10, 124,497,657.15 and 54,332,991.70
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Solution
The fourth proportional to 82,998,438.10, 124,497,657.15 and 54,332,991.70 is: 81,499,487.55
Step by Step Solution
- Step 1: Write the proportion equation
82,998,438.10 : 124,497,657.15 = 54,332,991.70 : x - Step 2: Convert to fraction form
82,998,438.10/124,497,657.15 = 54,332,991.70/x - Step 3: Cross multiply
82,998,438.10x = 124,497,657.15 × 54,332,991.70 - Step 4: Simplify right side
82,998,438.10x = 6,764,330,172,600,396 - Step 5: Solve for x
x = 6,764,330,172,600,396/82,998,438.10 - Step 6: Final answer
x = 81,499,487.55
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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.