Finding the Fourth Proportional to 221,266,245.62, 305,339,414.68 and 122,144,864.06
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Solution
The fourth proportional to 221,266,245.62, 305,339,414.68 and 122,144,864.06 is: 168,555,493.83
Step by Step Solution
- Step 1: Write the proportion equation
221,266,245.62 : 305,339,414.68 = 122,144,864.06 : x - Step 2: Convert to fraction form
221,266,245.62/305,339,414.68 = 122,144,864.06/x - Step 3: Cross multiply
221,266,245.62x = 305,339,414.68 × 122,144,864.06 - Step 4: Simplify right side
221,266,245.62x = 37,295,641,298,248,568 - Step 5: Solve for x
x = 37,295,641,298,248,568/221,266,245.62 - Step 6: Final answer
x = 168,555,493.83
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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.