Finding the Fourth Proportional to 165,397,372.12, 228,244,201.68 and 91,057,190.71
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Solution
The fourth proportional to 165,397,372.12, 228,244,201.68 and 91,057,190.71 is: 125,656,626.42
Step by Step Solution
- Step 1: Write the proportion equation
165,397,372.12 : 228,244,201.68 = 91,057,190.71 : x - Step 2: Convert to fraction form
165,397,372.12/228,244,201.68 = 91,057,190.71/x - Step 3: Cross multiply
165,397,372.12x = 228,244,201.68 × 91,057,190.71 - Step 4: Simplify right side
165,397,372.12x = 20,783,275,799,686,240 - Step 5: Solve for x
x = 20,783,275,799,686,240/165,397,372.12 - Step 6: Final answer
x = 125,656,626.42
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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.