Finding the Fourth Proportional to 7,881,027.80, 11,821,541.70 and 4,512,464.60
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Solution
The fourth proportional to 7,881,027.80, 11,821,541.70 and 4,512,464.60 is: 6,768,696.90
Step by Step Solution
- Step 1: Write the proportion equation
7,881,027.80 : 11,821,541.70 = 4,512,464.60 : x - Step 2: Convert to fraction form
7,881,027.80/11,821,541.70 = 4,512,464.60/x - Step 3: Cross multiply
7,881,027.80x = 11,821,541.70 × 4,512,464.60 - Step 4: Simplify right side
7,881,027.80x = 53,344,288,438,673.81 - Step 5: Solve for x
x = 53,344,288,438,673.81/7,881,027.80 - Step 6: Final answer
x = 6,768,696.90
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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.