Finding the Fourth Proportional to 221,266,230.87, 305,339,394.38 and 122,144,849.31
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Solution
The fourth proportional to 221,266,230.87, 305,339,394.38 and 122,144,849.31 is: 168,555,473.50
Step by Step Solution
- Step 1: Write the proportion equation
221,266,230.87 : 305,339,394.38 = 122,144,849.31 : x - Step 2: Convert to fraction form
221,266,230.87/305,339,394.38 = 122,144,849.31/x - Step 3: Cross multiply
221,266,230.87x = 305,339,394.38 × 122,144,849.31 - Step 4: Simplify right side
221,266,230.87x = 37,295,634,314,341,040 - Step 5: Solve for x
x = 37,295,634,314,341,040/221,266,230.87 - Step 6: Final answer
x = 168,555,473.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.