Finding the Fourth Proportional to 211,907,935.80, 317,861,903.70 and 154,512,307.80
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Solution
The fourth proportional to 211,907,935.80, 317,861,903.70 and 154,512,307.80 is: 231,768,461.70
Step by Step Solution
- Step 1: Write the proportion equation
211,907,935.80 : 317,861,903.70 = 154,512,307.80 : x - Step 2: Convert to fraction form
211,907,935.80/317,861,903.70 = 154,512,307.80/x - Step 3: Cross multiply
211,907,935.80x = 317,861,903.70 × 154,512,307.80 - Step 4: Simplify right side
211,907,935.80x = 49,113,576,302,388,360 - Step 5: Solve for x
x = 49,113,576,302,388,360/211,907,935.80 - Step 6: Final answer
x = 231,768,461.70
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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.