Finding the Fourth Proportional to 2,135,808,014.40, 3,203,712,021.60 and 843,175,540.80
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Solution
The fourth proportional to 2,135,808,014.40, 3,203,712,021.60 and 843,175,540.80 is: 1,264,763,311.20
Step by Step Solution
- Step 1: Write the proportion equation
2,135,808,014.40 : 3,203,712,021.60 = 843,175,540.80 : x - Step 2: Convert to fraction form
2,135,808,014.40/3,203,712,021.60 = 843,175,540.80/x - Step 3: Cross multiply
2,135,808,014.40x = 3,203,712,021.60 × 843,175,540.80 - Step 4: Simplify right side
2,135,808,014.40x = 2,701,291,616,380,041,216 - Step 5: Solve for x
x = 2,701,291,616,380,041,216/2,135,808,014.40 - Step 6: Final answer
x = 1,264,763,311.20
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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.