Finding the Fourth Proportional to 207,695,771.33, 311,560,153.80 and 69,522,107.78
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Solution
The fourth proportional to 207,695,771.33, 311,560,153.80 and 69,522,107.78 is: 104,288,683.65
Step by Step Solution
- Step 1: Write the proportion equation
207,695,771.33 : 311,560,153.80 = 69,522,107.78 : x - Step 2: Convert to fraction form
207,695,771.33/311,560,153.80 = 69,522,107.78/x - Step 3: Cross multiply
207,695,771.33x = 311,560,153.80 × 69,522,107.78 - Step 4: Simplify right side
207,695,771.33x = 21,660,318,591,593,356 - Step 5: Solve for x
x = 21,660,318,591,593,356/207,695,771.33 - Step 6: Final answer
x = 104,288,683.65
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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.