Finding the Fourth Proportional to 3,838,234,893.75, 5,757,352,340.63 and 930,189,741.75
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Solution
The fourth proportional to 3,838,234,893.75, 5,757,352,340.63 and 930,189,741.75 is: 1,395,284,612.63
Step by Step Solution
- Step 1: Write the proportion equation
3,838,234,893.75 : 5,757,352,340.63 = 930,189,741.75 : x - Step 2: Convert to fraction form
3,838,234,893.75/5,757,352,340.63 = 930,189,741.75/x - Step 3: Cross multiply
3,838,234,893.75x = 5,757,352,340.63 × 930,189,741.75 - Step 4: Simplify right side
3,838,234,893.75x = 5,355,430,086,894,377,984 - Step 5: Solve for x
x = 5,355,430,086,894,377,984/3,838,234,893.75 - Step 6: Final answer
x = 1,395,284,612.63
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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.