Finding the Fourth Proportional to 120,789,838.68, 166,704,983.68 and 68,595,640.24
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Solution
The fourth proportional to 120,789,838.68, 166,704,983.68 and 68,595,640.24 is: 94,670,505.50
Step by Step Solution
- Step 1: Write the proportion equation
120,789,838.68 : 166,704,983.68 = 68,595,640.24 : x - Step 2: Convert to fraction form
120,789,838.68/166,704,983.68 = 68,595,640.24/x - Step 3: Cross multiply
120,789,838.68x = 166,704,983.68 × 68,595,640.24 - Step 4: Simplify right side
120,789,838.68x = 11,435,235,086,728,350 - Step 5: Solve for x
x = 11,435,235,086,728,350/120,789,838.68 - Step 6: Final answer
x = 94,670,505.50
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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.