Finding the Fourth Proportional to 3,985,980,591.24, 5,500,546,645.05 and 2,201,795,644.05
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Solution
The fourth proportional to 3,985,980,591.24, 5,500,546,645.05 and 2,201,795,644.05 is: 3,038,419,120.65
Step by Step Solution
- Step 1: Write the proportion equation
3,985,980,591.24 : 5,500,546,645.05 = 2,201,795,644.05 : x - Step 2: Convert to fraction form
3,985,980,591.24/5,500,546,645.05 = 2,201,795,644.05/x - Step 3: Cross multiply
3,985,980,591.24x = 5,500,546,645.05 × 2,201,795,644.05 - Step 4: Simplify right side
3,985,980,591.24x = 12,111,079,642,964,932,608 - Step 5: Solve for x
x = 12,111,079,642,964,932,608/3,985,980,591.24 - Step 6: Final answer
x = 3,038,419,120.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.