Finding the Fourth Proportional to 365,822,432.21, 504,821,438.34 and 198,555,102.15
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Solution
The fourth proportional to 365,822,432.21, 504,821,438.34 and 198,555,102.15 is: 273,998,703.83
Step by Step Solution
- Step 1: Write the proportion equation
365,822,432.21 : 504,821,438.34 = 198,555,102.15 : x - Step 2: Convert to fraction form
365,822,432.21/504,821,438.34 = 198,555,102.15/x - Step 3: Cross multiply
365,822,432.21x = 504,821,438.34 × 198,555,102.15 - Step 4: Simplify right side
365,822,432.21x = 100,234,872,257,108,624 - Step 5: Solve for x
x = 100,234,872,257,108,624/365,822,432.21 - Step 6: Final answer
x = 273,998,703.83
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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.