Finding the Fourth Proportional to 492,119,134.20, 738,178,701.30 and 261,969,751.80
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Solution
The fourth proportional to 492,119,134.20, 738,178,701.30 and 261,969,751.80 is: 392,954,627.70
Step by Step Solution
- Step 1: Write the proportion equation
492,119,134.20 : 738,178,701.30 = 261,969,751.80 : x - Step 2: Convert to fraction form
492,119,134.20/738,178,701.30 = 261,969,751.80/x - Step 3: Cross multiply
492,119,134.20x = 738,178,701.30 × 261,969,751.80 - Step 4: Simplify right side
492,119,134.20x = 193,380,491,163,607,328 - Step 5: Solve for x
x = 193,380,491,163,607,328/492,119,134.20 - Step 6: Final answer
x = 392,954,627.70
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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.