Finding the Fourth Proportional to 111,246,090.13, 153,512,121.07 and 61,684,629.05
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Solution
The fourth proportional to 111,246,090.13, 153,512,121.07 and 61,684,629.05 is: 85,120,638.68
Step by Step Solution
- Step 1: Write the proportion equation
111,246,090.13 : 153,512,121.07 = 61,684,629.05 : x - Step 2: Convert to fraction form
111,246,090.13/153,512,121.07 = 61,684,629.05/x - Step 3: Cross multiply
111,246,090.13x = 153,512,121.07 × 61,684,629.05 - Step 4: Simplify right side
111,246,090.13x = 9,469,338,242,802,622 - Step 5: Solve for x
x = 9,469,338,242,802,622/111,246,090.13 - Step 6: Final answer
x = 85,120,638.68
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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.