Finding the Fourth Proportional to 136,361,624.80, 188,177,795.76 and 74,481,944.80
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Solution
The fourth proportional to 136,361,624.80, 188,177,795.76 and 74,481,944.80 is: 102,784,402.99
Step by Step Solution
- Step 1: Write the proportion equation
136,361,624.80 : 188,177,795.76 = 74,481,944.80 : x - Step 2: Convert to fraction form
136,361,624.80/188,177,795.76 = 74,481,944.80/x - Step 3: Cross multiply
136,361,624.80x = 188,177,795.76 × 74,481,944.80 - Step 4: Simplify right side
136,361,624.80x = 14,015,848,196,381,992 - Step 5: Solve for x
x = 14,015,848,196,381,992/136,361,624.80 - Step 6: Final answer
x = 102,784,402.99
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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.