Finding the Fourth Proportional to 105,373,668.23, 157,945,198.84 and 54,258,754.31
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Solution
The fourth proportional to 105,373,668.23, 157,945,198.84 and 54,258,754.31 is: 81,328,759.66
Step by Step Solution
- Step 1: Write the proportion equation
105,373,668.23 : 157,945,198.84 = 54,258,754.31 : x - Step 2: Convert to fraction form
105,373,668.23/157,945,198.84 = 54,258,754.31/x - Step 3: Cross multiply
105,373,668.23x = 157,945,198.84 × 54,258,754.31 - Step 4: Simplify right side
105,373,668.23x = 8,569,909,738,303,658 - Step 5: Solve for x
x = 8,569,909,738,303,658/105,373,668.23 - Step 6: Final answer
x = 81,328,759.66
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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.