Finding the Fourth Proportional to 201,581,968.82, 278,269,105.46 and 135,540,747.09
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Solution
The fourth proportional to 201,581,968.82, 278,269,105.46 and 135,540,747.09 is: 187,104,048.38
Step by Step Solution
- Step 1: Write the proportion equation
201,581,968.82 : 278,269,105.46 = 135,540,747.09 : x - Step 2: Convert to fraction form
201,581,968.82/278,269,105.46 = 135,540,747.09/x - Step 3: Cross multiply
201,581,968.82x = 278,269,105.46 × 135,540,747.09 - Step 4: Simplify right side
201,581,968.82x = 37,716,802,445,436,696 - Step 5: Solve for x
x = 37,716,802,445,436,696/201,581,968.82 - Step 6: Final answer
x = 187,104,048.38
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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.