Finding the Fourth Proportional to 1,019,934,136.80, 1,529,901,205.20 and 330,336,295.20
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Solution
The fourth proportional to 1,019,934,136.80, 1,529,901,205.20 and 330,336,295.20 is: 495,504,442.80
Step by Step Solution
- Step 1: Write the proportion equation
1,019,934,136.80 : 1,529,901,205.20 = 330,336,295.20 : x - Step 2: Convert to fraction form
1,019,934,136.80/1,529,901,205.20 = 330,336,295.20/x - Step 3: Cross multiply
1,019,934,136.80x = 1,529,901,205.20 × 330,336,295.20 - Step 4: Simplify right side
1,019,934,136.80x = 505,381,896,147,782,976 - Step 5: Solve for x
x = 505,381,896,147,782,976/1,019,934,136.80 - Step 6: Final answer
x = 495,504,442.80
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Double scale
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Similar ratio
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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.