Finding the Fourth Proportional to 80,911,612.20, 121,409,408.70 and 35,477,999.40
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Solution
The fourth proportional to 80,911,612.20, 121,409,408.70 and 35,477,999.40 is: 53,235,410.99
Step by Step Solution
- Step 1: Write the proportion equation
80,911,612.20 : 121,409,408.70 = 35,477,999.40 : x - Step 2: Convert to fraction form
80,911,612.20/121,409,408.70 = 35,477,999.40/x - Step 3: Cross multiply
80,911,612.20x = 121,409,408.70 × 35,477,999.40 - Step 4: Simplify right side
80,911,612.20x = 4,307,362,929,012,954.50 - Step 5: Solve for x
x = 4,307,362,929,012,954.50/80,911,612.20 - Step 6: Final answer
x = 53,235,410.99
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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.