Finding the Fourth Proportional to 99,642,626.20, 149,463,939.30 and 88,893,083.80
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Solution
The fourth proportional to 99,642,626.20, 149,463,939.30 and 88,893,083.80 is: 133,339,625.70
Step by Step Solution
- Step 1: Write the proportion equation
99,642,626.20 : 149,463,939.30 = 88,893,083.80 : x - Step 2: Convert to fraction form
99,642,626.20/149,463,939.30 = 88,893,083.80/x - Step 3: Cross multiply
99,642,626.20x = 149,463,939.30 × 88,893,083.80 - Step 4: Simplify right side
99,642,626.20x = 13,286,310,481,273,014 - Step 5: Solve for x
x = 13,286,310,481,273,014/99,642,626.20 - Step 6: Final answer
x = 133,339,625.70
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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.