Finding the Fourth Proportional to 80,471,096.64, 120,709,576.80 and 28,659,509.44
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Solution
The fourth proportional to 80,471,096.64, 120,709,576.80 and 28,659,509.44 is: 42,990,308.32
Step by Step Solution
- Step 1: Write the proportion equation
80,471,096.64 : 120,709,576.80 = 28,659,509.44 : x - Step 2: Convert to fraction form
80,471,096.64/120,709,576.80 = 28,659,509.44/x - Step 3: Cross multiply
80,471,096.64x = 120,709,576.80 × 28,659,509.44 - Step 4: Simplify right side
80,471,096.64x = 3,459,477,255,798,005 - Step 5: Solve for x
x = 3,459,477,255,798,005/80,471,096.64 - Step 6: Final answer
x = 42,990,308.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.