Finding the Fourth Proportional to 157,438,107.36, 236,225,361.60 and 84,569,863.68
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Solution
The fourth proportional to 157,438,107.36, 236,225,361.60 and 84,569,863.68 is: 126,891,430.31
Step by Step Solution
- Step 1: Write the proportion equation
157,438,107.36 : 236,225,361.60 = 84,569,863.68 : x - Step 2: Convert to fraction form
157,438,107.36/236,225,361.60 = 84,569,863.68/x - Step 3: Cross multiply
157,438,107.36x = 236,225,361.60 × 84,569,863.68 - Step 4: Simplify right side
157,438,107.36x = 19,977,546,628,270,708 - Step 5: Solve for x
x = 19,977,546,628,270,708/157,438,107.36 - Step 6: Final answer
x = 126,891,430.31
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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.