Finding the Fourth Proportional to 3,990,758,775.58, 5,504,652,163.69 and 2,559,562,958.53
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Solution
The fourth proportional to 3,990,758,775.58, 5,504,652,163.69 and 2,559,562,958.53 is: 3,530,532,555.36
Step by Step Solution
- Step 1: Write the proportion equation
3,990,758,775.58 : 5,504,652,163.69 = 2,559,562,958.53 : x - Step 2: Convert to fraction form
3,990,758,775.58/5,504,652,163.69 = 2,559,562,958.53/x - Step 3: Cross multiply
3,990,758,775.58x = 5,504,652,163.69 × 2,559,562,958.53 - Step 4: Simplify right side
3,990,758,775.58x = 14,089,503,777,772,941,312 - Step 5: Solve for x
x = 14,089,503,777,772,941,312/3,990,758,775.58 - Step 6: Final answer
x = 3,530,532,555.36
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1.5x scale
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.