Finding the Fourth Proportional to 201,204,480.60, 301,806,720.90 and 71,816,311.80
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Solution
The fourth proportional to 201,204,480.60, 301,806,720.90 and 71,816,311.80 is: 107,724,467.70
Step by Step Solution
- Step 1: Write the proportion equation
201,204,480.60 : 301,806,720.90 = 71,816,311.80 : x - Step 2: Convert to fraction form
201,204,480.60/301,806,720.90 = 71,816,311.80/x - Step 3: Cross multiply
201,204,480.60x = 301,806,720.90 × 71,816,311.80 - Step 4: Simplify right side
201,204,480.60x = 21,674,645,571,489,976 - Step 5: Solve for x
x = 21,674,645,571,489,976/201,204,480.60 - Step 6: Final answer
x = 107,724,467.70
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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.