Finding the Fourth Proportional to 3,520,728,028.80, 5,284,493,265.60 and 2,143,232,956.80
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Solution
The fourth proportional to 3,520,728,028.80, 5,284,493,265.60 and 2,143,232,956.80 is: 3,216,919,919.45
Step by Step Solution
- Step 1: Write the proportion equation
3,520,728,028.80 : 5,284,493,265.60 = 2,143,232,956.80 : x - Step 2: Convert to fraction form
3,520,728,028.80/5,284,493,265.60 = 2,143,232,956.80/x - Step 3: Cross multiply
3,520,728,028.80x = 5,284,493,265.60 × 2,143,232,956.80 - Step 4: Simplify right side
3,520,728,028.80x = 11,325,900,126,821,576,704 - Step 5: Solve for x
x = 11,325,900,126,821,576,704/3,520,728,028.80 - Step 6: Final answer
x = 3,216,919,919.45
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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.