Finding the Fourth Proportional to 239,519,944.44, 330,541,828.20 and 140,472,129.78
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Solution
The fourth proportional to 239,519,944.44, 330,541,828.20 and 140,472,129.78 is: 193,854,063.79
Step by Step Solution
- Step 1: Write the proportion equation
239,519,944.44 : 330,541,828.20 = 140,472,129.78 : x - Step 2: Convert to fraction form
239,519,944.44/330,541,828.20 = 140,472,129.78/x - Step 3: Cross multiply
239,519,944.44x = 330,541,828.20 × 140,472,129.78 - Step 4: Simplify right side
239,519,944.44x = 46,431,914,588,628,864 - Step 5: Solve for x
x = 46,431,914,588,628,864/239,519,944.44 - Step 6: Final answer
x = 193,854,063.79
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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.