Finding the Fourth Proportional to 99,741,631.68, 149,612,438.56 and 50,549,822.40
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Solution
The fourth proportional to 99,741,631.68, 149,612,438.56 and 50,549,822.40 is: 75,824,729.06
Step by Step Solution
- Step 1: Write the proportion equation
99,741,631.68 : 149,612,438.56 = 50,549,822.40 : x - Step 2: Convert to fraction form
99,741,631.68/149,612,438.56 = 50,549,822.40/x - Step 3: Cross multiply
99,741,631.68x = 149,612,438.56 × 50,549,822.40 - Step 4: Simplify right side
99,741,631.68x = 7,562,882,198,038,912 - Step 5: Solve for x
x = 7,562,882,198,038,912/99,741,631.68 - Step 6: Final answer
x = 75,824,729.06
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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.