Finding the Fourth Proportional to 177,147,254.80, 265,720,882.20 and 172,364,285.80
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Solution
The fourth proportional to 177,147,254.80, 265,720,882.20 and 172,364,285.80 is: 258,546,428.70
Step by Step Solution
- Step 1: Write the proportion equation
177,147,254.80 : 265,720,882.20 = 172,364,285.80 : x - Step 2: Convert to fraction form
177,147,254.80/265,720,882.20 = 172,364,285.80/x - Step 3: Cross multiply
177,147,254.80x = 265,720,882.20 × 172,364,285.80 - Step 4: Simplify right side
177,147,254.80x = 45,800,790,082,548,936 - Step 5: Solve for x
x = 45,800,790,082,548,936/177,147,254.80 - Step 6: Final answer
x = 258,546,428.70
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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.