Finding the Fourth Proportional to 217,224,234.60, 325,836,351.90 and 125,391,229.80
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Solution
The fourth proportional to 217,224,234.60, 325,836,351.90 and 125,391,229.80 is: 188,086,844.70
Step by Step Solution
- Step 1: Write the proportion equation
217,224,234.60 : 325,836,351.90 = 125,391,229.80 : x - Step 2: Convert to fraction form
217,224,234.60/325,836,351.90 = 125,391,229.80/x - Step 3: Cross multiply
217,224,234.60x = 325,836,351.90 × 125,391,229.80 - Step 4: Simplify right side
217,224,234.60x = 40,857,020,878,286,560 - Step 5: Solve for x
x = 40,857,020,878,286,560/217,224,234.60 - Step 6: Final answer
x = 188,086,844.70
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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.