Finding the Fourth Proportional to 82,912,107.90, 124,368,161.85 and 39,759,098.70
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Solution
The fourth proportional to 82,912,107.90, 124,368,161.85 and 39,759,098.70 is: 59,638,648.05
Step by Step Solution
- Step 1: Write the proportion equation
82,912,107.90 : 124,368,161.85 = 39,759,098.70 : x - Step 2: Convert to fraction form
82,912,107.90/124,368,161.85 = 39,759,098.70/x - Step 3: Cross multiply
82,912,107.90x = 124,368,161.85 × 39,759,098.70 - Step 4: Simplify right side
82,912,107.90x = 4,944,766,022,131,725 - Step 5: Solve for x
x = 4,944,766,022,131,725/82,912,107.90 - Step 6: Final answer
x = 59,638,648.05
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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.