Finding the Fourth Proportional to 85,464,579.56, 128,324,940.06 and 73,985,453.96
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Solution
The fourth proportional to 85,464,579.56, 128,324,940.06 and 73,985,453.96 is: 111,089,049.92
Step by Step Solution
- Step 1: Write the proportion equation
85,464,579.56 : 128,324,940.06 = 73,985,453.96 : x - Step 2: Convert to fraction form
85,464,579.56/128,324,940.06 = 73,985,453.96/x - Step 3: Cross multiply
85,464,579.56x = 128,324,940.06 × 73,985,453.96 - Step 4: Simplify right side
85,464,579.56x = 9,494,178,944,728,888 - Step 5: Solve for x
x = 9,494,178,944,728,888/85,464,579.56 - Step 6: Final answer
x = 111,089,049.92
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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.