Finding the Fourth Proportional to 82,738,862.70, 124,108,294.05 and 69,984,278.70
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Solution
The fourth proportional to 82,738,862.70, 124,108,294.05 and 69,984,278.70 is: 104,976,418.05
Step by Step Solution
- Step 1: Write the proportion equation
82,738,862.70 : 124,108,294.05 = 69,984,278.70 : x - Step 2: Convert to fraction form
82,738,862.70/124,108,294.05 = 69,984,278.70/x - Step 3: Cross multiply
82,738,862.70x = 124,108,294.05 × 69,984,278.70 - Step 4: Simplify right side
82,738,862.70x = 8,685,629,439,776,752 - Step 5: Solve for x
x = 8,685,629,439,776,752/82,738,862.70 - Step 6: Final answer
x = 104,976,418.05
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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.