Finding the Fourth Proportional to 134,786,939.60, 202,180,409.40 and 66,615,525.20
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Solution
The fourth proportional to 134,786,939.60, 202,180,409.40 and 66,615,525.20 is: 99,923,287.80
Step by Step Solution
- Step 1: Write the proportion equation
134,786,939.60 : 202,180,409.40 = 66,615,525.20 : x - Step 2: Convert to fraction form
134,786,939.60/202,180,409.40 = 66,615,525.20/x - Step 3: Cross multiply
134,786,939.60x = 202,180,409.40 × 66,615,525.20 - Step 4: Simplify right side
134,786,939.60x = 13,468,354,157,332,018 - Step 5: Solve for x
x = 13,468,354,157,332,018/134,786,939.60 - Step 6: Final answer
x = 99,923,287.80
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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.