Finding the Fourth Proportional to 420,765,772.26, 580,629,095.74 and 242,120,826.91
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Solution
The fourth proportional to 420,765,772.26, 580,629,095.74 and 242,120,826.91 is: 334,110,819.03
Step by Step Solution
- Step 1: Write the proportion equation
420,765,772.26 : 580,629,095.74 = 242,120,826.91 : x - Step 2: Convert to fraction form
420,765,772.26/580,629,095.74 = 242,120,826.91/x - Step 3: Cross multiply
420,765,772.26x = 580,629,095.74 × 242,120,826.91 - Step 4: Simplify right side
420,765,772.26x = 140,582,396,789,599,424 - Step 5: Solve for x
x = 140,582,396,789,599,424/420,765,772.26 - Step 6: Final answer
x = 334,110,819.03
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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.