Finding the Fourth Proportional to 99,289,747.20, 148,934,620.80 and 27,486,163.20
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Solution
The fourth proportional to 99,289,747.20, 148,934,620.80 and 27,486,163.20 is: 41,229,244.80
Step by Step Solution
- Step 1: Write the proportion equation
99,289,747.20 : 148,934,620.80 = 27,486,163.20 : x - Step 2: Convert to fraction form
99,289,747.20/148,934,620.80 = 27,486,163.20/x - Step 3: Cross multiply
99,289,747.20x = 148,934,620.80 × 27,486,163.20 - Step 4: Simplify right side
99,289,747.20x = 4,093,641,293,438,915 - Step 5: Solve for x
x = 4,093,641,293,438,915/99,289,747.20 - Step 6: Final answer
x = 41,229,244.80
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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.