Finding the Fourth Proportional to 3,418,480,645.60, 5,127,720,968.40 and 3,189,157,074.40
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Solution
The fourth proportional to 3,418,480,645.60, 5,127,720,968.40 and 3,189,157,074.40 is: 4,783,735,611.60
Step by Step Solution
- Step 1: Write the proportion equation
3,418,480,645.60 : 5,127,720,968.40 = 3,189,157,074.40 : x - Step 2: Convert to fraction form
3,418,480,645.60/5,127,720,968.40 = 3,189,157,074.40/x - Step 3: Cross multiply
3,418,480,645.60x = 5,127,720,968.40 × 3,189,157,074.40 - Step 4: Simplify right side
3,418,480,645.60x = 16,353,107,601,922,078,720 - Step 5: Solve for x
x = 16,353,107,601,922,078,720/3,418,480,645.60 - Step 6: Final answer
x = 4,783,735,611.60
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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.