Finding the Fourth Proportional to 174,634,474.16, 261,406,762.79 and 128,628,291.09
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Solution
The fourth proportional to 174,634,474.16, 261,406,762.79 and 128,628,291.09 is: 192,541,050.89
Step by Step Solution
- Step 1: Write the proportion equation
174,634,474.16 : 261,406,762.79 = 128,628,291.09 : x - Step 2: Convert to fraction form
174,634,474.16/261,406,762.79 = 128,628,291.09/x - Step 3: Cross multiply
174,634,474.16x = 261,406,762.79 × 128,628,291.09 - Step 4: Simplify right side
174,634,474.16x = 33,624,305,177,383,832 - Step 5: Solve for x
x = 33,624,305,177,383,832/174,634,474.16 - Step 6: Final answer
x = 192,541,050.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.