Finding the Fourth Proportional to 7,634,509,819.20, 11,451,764,728.80 and 3,961,189,627.20
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Solution
The fourth proportional to 7,634,509,819.20, 11,451,764,728.80 and 3,961,189,627.20 is: 5,941,784,440.80
Step by Step Solution
- Step 1: Write the proportion equation
7,634,509,819.20 : 11,451,764,728.80 = 3,961,189,627.20 : x - Step 2: Convert to fraction form
7,634,509,819.20/11,451,764,728.80 = 3,961,189,627.20/x - Step 3: Cross multiply
7,634,509,819.20x = 11,451,764,728.80 × 3,961,189,627.20 - Step 4: Simplify right side
7,634,509,819.20x = 45,362,611,656,857,378,816 - Step 5: Solve for x
x = 45,362,611,656,857,378,816/7,634,509,819.20 - Step 6: Final answer
x = 5,941,784,440.80
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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.