Finding the Fourth Proportional to 317,322,338.36, 437,947,558.06 and 178,100,716.28
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Solution
The fourth proportional to 317,322,338.36, 437,947,558.06 and 178,100,716.28 is: 245,802,971.79
Step by Step Solution
- Step 1: Write the proportion equation
317,322,338.36 : 437,947,558.06 = 178,100,716.28 : x - Step 2: Convert to fraction form
317,322,338.36/437,947,558.06 = 178,100,716.28/x - Step 3: Cross multiply
317,322,338.36x = 437,947,558.06 × 178,100,716.28 - Step 4: Simplify right side
317,322,338.36x = 77,998,773,783,562,896 - Step 5: Solve for x
x = 77,998,773,783,562,896/317,322,338.36 - Step 6: Final answer
x = 245,802,971.79
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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.