Finding the Fourth Proportional to 80,930,638.75, 111,684,202.70 and 43,760,830.08
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Solution
The fourth proportional to 80,930,638.75, 111,684,202.70 and 43,760,830.08 is: 60,389,902.92
Step by Step Solution
- Step 1: Write the proportion equation
80,930,638.75 : 111,684,202.70 = 43,760,830.08 : x - Step 2: Convert to fraction form
80,930,638.75/111,684,202.70 = 43,760,830.08/x - Step 3: Cross multiply
80,930,638.75x = 111,684,202.70 × 43,760,830.08 - Step 4: Simplify right side
80,930,638.75x = 4,887,393,416,974,977 - Step 5: Solve for x
x = 4,887,393,416,974,977/80,930,638.75 - Step 6: Final answer
x = 60,389,902.92
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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.