Finding the Fourth Proportional to 135,383,404.80, 203,075,107.20 and 129,486,086.40
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Solution
The fourth proportional to 135,383,404.80, 203,075,107.20 and 129,486,086.40 is: 194,229,129.60
Step by Step Solution
- Step 1: Write the proportion equation
135,383,404.80 : 203,075,107.20 = 129,486,086.40 : x - Step 2: Convert to fraction form
135,383,404.80/203,075,107.20 = 129,486,086.40/x - Step 3: Cross multiply
135,383,404.80x = 203,075,107.20 × 129,486,086.40 - Step 4: Simplify right side
135,383,404.80x = 26,295,400,876,588,460 - Step 5: Solve for x
x = 26,295,400,876,588,460/135,383,404.80 - Step 6: Final answer
x = 194,229,129.60
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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.