Finding the Fourth Proportional to 82,879,751.70, 124,080,479.10 and 73,313,813.70
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Solution
The fourth proportional to 82,879,751.70, 124,080,479.10 and 73,313,813.70 is: 109,759,174.49
Step by Step Solution
- Step 1: Write the proportion equation
82,879,751.70 : 124,080,479.10 = 73,313,813.70 : x - Step 2: Convert to fraction form
82,879,751.70/124,080,479.10 = 73,313,813.70/x - Step 3: Cross multiply
82,879,751.70x = 124,080,479.10 × 73,313,813.70 - Step 4: Simplify right side
82,879,751.70x = 9,096,813,128,544,144 - Step 5: Solve for x
x = 9,096,813,128,544,144/82,879,751.70 - Step 6: Final answer
x = 109,759,174.49
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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.