Finding the Fourth Proportional to 75,816,091.80, 113,724,137.70 and 73,690,327.80
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Solution
The fourth proportional to 75,816,091.80, 113,724,137.70 and 73,690,327.80 is: 110,535,491.70
Step by Step Solution
- Step 1: Write the proportion equation
75,816,091.80 : 113,724,137.70 = 73,690,327.80 : x - Step 2: Convert to fraction form
75,816,091.80/113,724,137.70 = 73,690,327.80/x - Step 3: Cross multiply
75,816,091.80x = 113,724,137.70 × 73,690,327.80 - Step 4: Simplify right side
75,816,091.80x = 8,380,368,985,885,338 - Step 5: Solve for x
x = 8,380,368,985,885,338/75,816,091.80 - Step 6: Final answer
x = 110,535,491.70
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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.