Finding the Fourth Proportional to 3,019,381,367.70, 4,529,072,051.55 and 838,347,503.70
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Solution
The fourth proportional to 3,019,381,367.70, 4,529,072,051.55 and 838,347,503.70 is: 1,257,521,255.55
Step by Step Solution
- Step 1: Write the proportion equation
3,019,381,367.70 : 4,529,072,051.55 = 838,347,503.70 : x - Step 2: Convert to fraction form
3,019,381,367.70/4,529,072,051.55 = 838,347,503.70/x - Step 3: Cross multiply
3,019,381,367.70x = 4,529,072,051.55 × 838,347,503.70 - Step 4: Simplify right side
3,019,381,367.70x = 3,796,936,248,494,380,544 - Step 5: Solve for x
x = 3,796,936,248,494,380,544/3,019,381,367.70 - Step 6: Final answer
x = 1,257,521,255.55
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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.