Finding the Fourth Proportional to 664,302,564.70, 996,453,847.05 and 479,679,961.30
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Solution
The fourth proportional to 664,302,564.70, 996,453,847.05 and 479,679,961.30 is: 719,519,941.95
Step by Step Solution
- Step 1: Write the proportion equation
664,302,564.70 : 996,453,847.05 = 479,679,961.30 : x - Step 2: Convert to fraction form
664,302,564.70/996,453,847.05 = 479,679,961.30/x - Step 3: Cross multiply
664,302,564.70x = 996,453,847.05 × 479,679,961.30 - Step 4: Simplify right side
664,302,564.70x = 477,978,942,790,180,096 - Step 5: Solve for x
x = 477,978,942,790,180,096/664,302,564.70 - Step 6: Final answer
x = 719,519,941.95
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Double scale
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Similar ratio
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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.