Finding the Fourth Proportional to 83,974,546.20, 125,961,819.30 and 69,625,639.20
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Solution
The fourth proportional to 83,974,546.20, 125,961,819.30 and 69,625,639.20 is: 104,438,458.80
Step by Step Solution
- Step 1: Write the proportion equation
83,974,546.20 : 125,961,819.30 = 69,625,639.20 : x - Step 2: Convert to fraction form
83,974,546.20/125,961,819.30 = 69,625,639.20/x - Step 3: Cross multiply
83,974,546.20x = 125,961,819.30 × 69,625,639.20 - Step 4: Simplify right side
83,974,546.20x = 8,770,172,183,557,397 - Step 5: Solve for x
x = 8,770,172,183,557,397/83,974,546.20 - Step 6: Final answer
x = 104,438,458.80
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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.