Finding the Fourth Proportional to 81,673,629.60, 114,428,112 and 81,673,629.60
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Solution
The fourth proportional to 81,673,629.60, 114,428,112 and 81,673,629.60 is: 114,428,112
Step by Step Solution
- Step 1: Write the proportion equation
81,673,629.60 : 114,428,112 = 81,673,629.60 : x - Step 2: Convert to fraction form
81,673,629.60/114,428,112 = 81,673,629.60/x - Step 3: Cross multiply
81,673,629.60x = 114,428,112 × 81,673,629.60 - Step 4: Simplify right side
81,673,629.60x = 9,345,759,235,315,314 - Step 5: Solve for x
x = 9,345,759,235,315,314/81,673,629.60 - Step 6: Final answer
x = 114,428,112
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.