Finding the Fourth Proportional to 8,394,624,136.20, 12,591,936,204.30 and 8,272,180,129.80
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Solution
The fourth proportional to 8,394,624,136.20, 12,591,936,204.30 and 8,272,180,129.80 is: 12,408,270,194.70
Step by Step Solution
- Step 1: Write the proportion equation
8,394,624,136.20 : 12,591,936,204.30 = 8,272,180,129.80 : x - Step 2: Convert to fraction form
8,394,624,136.20/12,591,936,204.30 = 8,272,180,129.80/x - Step 3: Cross multiply
8,394,624,136.20x = 12,591,936,204.30 × 8,272,180,129.80 - Step 4: Simplify right side
8,394,624,136.20x = 104,162,764,464,919,691,264 - Step 5: Solve for x
x = 104,162,764,464,919,691,264/8,394,624,136.20 - Step 6: Final answer
x = 12,408,270,194.70
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1.5x scale
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.