Finding the Fourth Proportional to 99,629,234.80, 149,471,845.80 and 48,512,921.20
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Solution
The fourth proportional to 99,629,234.80, 149,471,845.80 and 48,512,921.20 is: 72,783,012.85
Step by Step Solution
- Step 1: Write the proportion equation
99,629,234.80 : 149,471,845.80 = 48,512,921.20 : x - Step 2: Convert to fraction form
99,629,234.80/149,471,845.80 = 48,512,921.20/x - Step 3: Cross multiply
99,629,234.80x = 149,471,845.80 × 48,512,921.20 - Step 4: Simplify right side
99,629,234.80x = 7,251,315,876,913,952 - Step 5: Solve for x
x = 7,251,315,876,913,952/99,629,234.80 - Step 6: Final answer
x = 72,783,012.85
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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.