Finding the Fourth Proportional to 28,912,168.62, 39,898,416.24 and 16,522,121.07
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Solution
The fourth proportional to 28,912,168.62, 39,898,416.24 and 16,522,121.07 is: 22,800,311.95
Step by Step Solution
- Step 1: Write the proportion equation
28,912,168.62 : 39,898,416.24 = 16,522,121.07 : x - Step 2: Convert to fraction form
28,912,168.62/39,898,416.24 = 16,522,121.07/x - Step 3: Cross multiply
28,912,168.62x = 39,898,416.24 × 16,522,121.07 - Step 4: Simplify right side
28,912,168.62x = 659,206,463,618,534.25 - Step 5: Solve for x
x = 659,206,463,618,534.25/28,912,168.62 - Step 6: Final answer
x = 22,800,311.95
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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.