Finding the Fourth Proportional to 217,281,013.80, 325,921,520.70 and 115,244,341.80
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Solution
The fourth proportional to 217,281,013.80, 325,921,520.70 and 115,244,341.80 is: 172,866,512.70
Step by Step Solution
- Step 1: Write the proportion equation
217,281,013.80 : 325,921,520.70 = 115,244,341.80 : x - Step 2: Convert to fraction form
217,281,013.80/325,921,520.70 = 115,244,341.80/x - Step 3: Cross multiply
217,281,013.80x = 325,921,520.70 × 115,244,341.80 - Step 4: Simplify right side
217,281,013.80x = 37,560,611,131,526,576 - Step 5: Solve for x
x = 37,560,611,131,526,576/217,281,013.80 - Step 6: Final answer
x = 172,866,512.70
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1.5x scale
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.