Finding the Fourth Proportional to 99,647,984.10, 149,471,976.15 and 61,184,777.70
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Solution
The fourth proportional to 99,647,984.10, 149,471,976.15 and 61,184,777.70 is: 91,777,166.55
Step by Step Solution
- Step 1: Write the proportion equation
99,647,984.10 : 149,471,976.15 = 61,184,777.70 : x - Step 2: Convert to fraction form
99,647,984.10/149,471,976.15 = 61,184,777.70/x - Step 3: Cross multiply
99,647,984.10x = 149,471,976.15 × 61,184,777.70 - Step 4: Simplify right side
99,647,984.10x = 9,145,409,633,117,452 - Step 5: Solve for x
x = 9,145,409,633,117,452/99,647,984.10 - Step 6: Final answer
x = 91,777,166.55
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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.