Finding the Fourth Proportional to 18,618,793.20, 27,865,204.20 and 16,351,311.60
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Solution
The fourth proportional to 18,618,793.20, 27,865,204.20 and 16,351,311.60 is: 24,471,652.47
Step by Step Solution
- Step 1: Write the proportion equation
18,618,793.20 : 27,865,204.20 = 16,351,311.60 : x - Step 2: Convert to fraction form
18,618,793.20/27,865,204.20 = 16,351,311.60/x - Step 3: Cross multiply
18,618,793.20x = 27,865,204.20 × 16,351,311.60 - Step 4: Simplify right side
18,618,793.20x = 455,632,636,671,828.69 - Step 5: Solve for x
x = 455,632,636,671,828.69/18,618,793.20 - Step 6: Final answer
x = 24,471,652.47
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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.