Finding the Fourth Proportional to 8,394,624,135.20, 12,591,936,202.80 and 8,272,180,128.80
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Solution
The fourth proportional to 8,394,624,135.20, 12,591,936,202.80 and 8,272,180,128.80 is: 12,408,270,193.20
Step by Step Solution
- Step 1: Write the proportion equation
8,394,624,135.20 : 12,591,936,202.80 = 8,272,180,128.80 : x - Step 2: Convert to fraction form
8,394,624,135.20/12,591,936,202.80 = 8,272,180,128.80/x - Step 3: Cross multiply
8,394,624,135.20x = 12,591,936,202.80 × 8,272,180,128.80 - Step 4: Simplify right side
8,394,624,135.20x = 104,162,764,439,919,476,736 - Step 5: Solve for x
x = 104,162,764,439,919,476,736/8,394,624,135.20 - Step 6: Final answer
x = 12,408,270,193.20
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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.