Finding the Fourth Proportional to 3,621,672,131.45, 5,432,508,197.18 and 1,036,743,107.45
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Solution
The fourth proportional to 3,621,672,131.45, 5,432,508,197.18 and 1,036,743,107.45 is: 1,555,114,661.18
Step by Step Solution
- Step 1: Write the proportion equation
3,621,672,131.45 : 5,432,508,197.18 = 1,036,743,107.45 : x - Step 2: Convert to fraction form
3,621,672,131.45/5,432,508,197.18 = 1,036,743,107.45/x - Step 3: Cross multiply
3,621,672,131.45x = 5,432,508,197.18 × 1,036,743,107.45 - Step 4: Simplify right side
3,621,672,131.45x = 5,632,115,429,591,991,296 - Step 5: Solve for x
x = 5,632,115,429,591,991,296/3,621,672,131.45 - Step 6: Final answer
x = 1,555,114,661.18
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Double scale
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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.