Finding the Fourth Proportional to 35,529,107.70, 53,293,661.55 and 20,412,563.70
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Solution
The fourth proportional to 35,529,107.70, 53,293,661.55 and 20,412,563.70 is: 30,618,845.55
Step by Step Solution
- Step 1: Write the proportion equation
35,529,107.70 : 53,293,661.55 = 20,412,563.70 : x - Step 2: Convert to fraction form
35,529,107.70/53,293,661.55 = 20,412,563.70/x - Step 3: Cross multiply
35,529,107.70x = 53,293,661.55 × 20,412,563.70 - Step 4: Simplify right side
35,529,107.70x = 1,087,860,261,195,615.62 - Step 5: Solve for x
x = 1,087,860,261,195,615.62/35,529,107.70 - Step 6: Final answer
x = 30,618,845.55
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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.