Finding the Fourth Proportional to 216,660,416.23, 298,991,953.93 and 117,541,163.62
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Solution
The fourth proportional to 216,660,416.23, 298,991,953.93 and 117,541,163.62 is: 162,207,120.20
Step by Step Solution
- Step 1: Write the proportion equation
216,660,416.23 : 298,991,953.93 = 117,541,163.62 : x - Step 2: Convert to fraction form
216,660,416.23/298,991,953.93 = 117,541,163.62/x - Step 3: Cross multiply
216,660,416.23x = 298,991,953.93 × 117,541,163.62 - Step 4: Simplify right side
216,660,416.23x = 35,143,862,177,949,636 - Step 5: Solve for x
x = 35,143,862,177,949,636/216,660,416.23 - Step 6: Final answer
x = 162,207,120.20
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.