Finding the Fourth Proportional to 193,537,236.70, 290,305,855.05 and 72,352,942.30
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Solution
The fourth proportional to 193,537,236.70, 290,305,855.05 and 72,352,942.30 is: 108,529,413.45
Step by Step Solution
- Step 1: Write the proportion equation
193,537,236.70 : 290,305,855.05 = 72,352,942.30 : x - Step 2: Convert to fraction form
193,537,236.70/290,305,855.05 = 72,352,942.30/x - Step 3: Cross multiply
193,537,236.70x = 290,305,855.05 × 72,352,942.30 - Step 4: Simplify right side
193,537,236.70x = 21,004,482,779,784,812 - Step 5: Solve for x
x = 21,004,482,779,784,812/193,537,236.70 - Step 6: Final answer
x = 108,529,413.45
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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.