Finding the Fourth Proportional to 123,567,289.21, 170,511,589.09 and 73,322,850.32
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Solution
The fourth proportional to 123,567,289.21, 170,511,589.09 and 73,322,850.32 is: 101,178,845.99
Step by Step Solution
- Step 1: Write the proportion equation
123,567,289.21 : 170,511,589.09 = 73,322,850.32 : x - Step 2: Convert to fraction form
123,567,289.21/170,511,589.09 = 73,322,850.32/x - Step 3: Cross multiply
123,567,289.21x = 170,511,589.09 × 73,322,850.32 - Step 4: Simplify right side
123,567,289.21x = 12,502,395,724,671,414 - Step 5: Solve for x
x = 12,502,395,724,671,414/123,567,289.21 - Step 6: Final answer
x = 101,178,845.99
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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.