Finding the Third Proportional to 311,405,487.19 and 438,030,372.38
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Solution
The third proportional to 311,405,487.19 and 438,030,372.38 is: 616,143,950.63
Step by Step Solution
- Step 1: Write the proportion equation
311,405,487.19 : 438,030,372.38 = 438,030,372.38 : x - Step 2: Convert to fraction form
311,405,487.19/438,030,372.38 = 438,030,372.38/x - Step 3: Cross multiply
311,405,487.19x = 438,030,372.38 × 438,030,372.38 - Step 4: Simplify right side
311,405,487.19x = 191,870,607,122,981,152 - Step 5: Solve for x
x = 191,870,607,122,981,152/311,405,487.19 - Step 6: Final answer
x = 616,143,950.63
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Why These Related Problems?
These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.