Finding the Fourth Proportional to 211,410,515.70, 317,115,773.55 and 211,410,515.70
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Solution
The fourth proportional to 211,410,515.70, 317,115,773.55 and 211,410,515.70 is: 317,115,773.55
Step by Step Solution
- Step 1: Write the proportion equation
211,410,515.70 : 317,115,773.55 = 211,410,515.70 : x - Step 2: Convert to fraction form
211,410,515.70/317,115,773.55 = 211,410,515.70/x - Step 3: Cross multiply
211,410,515.70x = 317,115,773.55 × 211,410,515.70 - Step 4: Simplify right side
211,410,515.70x = 67,041,609,222,809,920 - Step 5: Solve for x
x = 67,041,609,222,809,920/211,410,515.70 - Step 6: Final answer
x = 317,115,773.55
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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.