Finding the Fourth Proportional to 5,213,275,571.40, 7,820,291,270.70 and 3,138,529,907.40
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Solution
The fourth proportional to 5,213,275,571.40, 7,820,291,270.70 and 3,138,529,907.40 is: 4,708,022,375.09
Step by Step Solution
- Step 1: Write the proportion equation
5,213,275,571.40 : 7,820,291,270.70 = 3,138,529,907.40 : x - Step 2: Convert to fraction form
5,213,275,571.40/7,820,291,270.70 = 3,138,529,907.40/x - Step 3: Cross multiply
5,213,275,571.40x = 7,820,291,270.70 × 3,138,529,907.40 - Step 4: Simplify right side
5,213,275,571.40x = 24,544,218,037,671,100,416 - Step 5: Solve for x
x = 24,544,218,037,671,100,416/5,213,275,571.40 - Step 6: Final answer
x = 4,708,022,375.09
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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.