Finding the Fourth Proportional to 190,436,732.11, 259,286,880.70 and 189,832,070.35
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Solution
The fourth proportional to 190,436,732.11, 259,286,880.70 and 189,832,070.35 is: 258,463,610.63
Step by Step Solution
- Step 1: Write the proportion equation
190,436,732.11 : 259,286,880.70 = 189,832,070.35 : x - Step 2: Convert to fraction form
190,436,732.11/259,286,880.70 = 189,832,070.35/x - Step 3: Cross multiply
190,436,732.11x = 259,286,880.70 × 189,832,070.35 - Step 4: Simplify right side
190,436,732.11x = 49,220,965,377,874,456 - Step 5: Solve for x
x = 49,220,965,377,874,456/190,436,732.11 - Step 6: Final answer
x = 258,463,610.63
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Why These Related Problems?
These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.