Finding the Fourth Proportional to 2,180,934,163.60, 3,271,401,245.40 and 1,310,221,229.20
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Solution
The fourth proportional to 2,180,934,163.60, 3,271,401,245.40 and 1,310,221,229.20 is: 1,965,331,843.80
Step by Step Solution
- Step 1: Write the proportion equation
2,180,934,163.60 : 3,271,401,245.40 = 1,310,221,229.20 : x - Step 2: Convert to fraction form
2,180,934,163.60/3,271,401,245.40 = 1,310,221,229.20/x - Step 3: Cross multiply
2,180,934,163.60x = 3,271,401,245.40 × 1,310,221,229.20 - Step 4: Simplify right side
2,180,934,163.60x = 4,286,259,360,954,399,232 - Step 5: Solve for x
x = 4,286,259,360,954,399,232/2,180,934,163.60 - Step 6: Final answer
x = 1,965,331,843.80
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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.