Finding the Fourth Proportional to 5,519,787,069.80, 8,279,680,604.70 and 5,447,227,658.60
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Solution
The fourth proportional to 5,519,787,069.80, 8,279,680,604.70 and 5,447,227,658.60 is: 8,170,841,487.90
Step by Step Solution
- Step 1: Write the proportion equation
5,519,787,069.80 : 8,279,680,604.70 = 5,447,227,658.60 : x - Step 2: Convert to fraction form
5,519,787,069.80/8,279,680,604.70 = 5,447,227,658.60/x - Step 3: Cross multiply
5,519,787,069.80x = 8,279,680,604.70 × 5,447,227,658.60 - Step 4: Simplify right side
5,519,787,069.80x = 45,101,305,194,295,812,096 - Step 5: Solve for x
x = 45,101,305,194,295,812,096/5,519,787,069.80 - Step 6: Final answer
x = 8,170,841,487.90
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Double scale
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1.5x scale
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.