Finding the Fourth Proportional to 203,145,927.21, 280,365,311.85 and 120,639,711.96
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Solution
The fourth proportional to 203,145,927.21, 280,365,311.85 and 120,639,711.96 is: 166,497,014.88
Step by Step Solution
- Step 1: Write the proportion equation
203,145,927.21 : 280,365,311.85 = 120,639,711.96 : x - Step 2: Convert to fraction form
203,145,927.21/280,365,311.85 = 120,639,711.96/x - Step 3: Cross multiply
203,145,927.21x = 280,365,311.85 × 120,639,711.96 - Step 4: Simplify right side
203,145,927.21x = 33,823,190,464,707,172 - Step 5: Solve for x
x = 33,823,190,464,707,172/203,145,927.21 - Step 6: Final answer
x = 166,497,014.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.