Finding the Fourth Proportional to 18,440,273.40, 25,450,908.36 and 10,998,412.68
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Solution
The fourth proportional to 18,440,273.40, 25,450,908.36 and 10,998,412.68 is: 15,179,796.26
Step by Step Solution
- Step 1: Write the proportion equation
18,440,273.40 : 25,450,908.36 = 10,998,412.68 : x - Step 2: Convert to fraction form
18,440,273.40/25,450,908.36 = 10,998,412.68/x - Step 3: Cross multiply
18,440,273.40x = 25,450,908.36 × 10,998,412.68 - Step 4: Simplify right side
18,440,273.40x = 279,919,593,224,142 - Step 5: Solve for x
x = 279,919,593,224,142/18,440,273.40 - Step 6: Final answer
x = 15,179,796.26
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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.