Finding the Fourth Proportional to 1,431,356,215.76, 2,146,795,120.44 and 396,321,722.96
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Solution
The fourth proportional to 1,431,356,215.76, 2,146,795,120.44 and 396,321,722.96 is: 594,416,352.55
Step by Step Solution
- Step 1: Write the proportion equation
1,431,356,215.76 : 2,146,795,120.44 = 396,321,722.96 : x - Step 2: Convert to fraction form
1,431,356,215.76/2,146,795,120.44 = 396,321,722.96/x - Step 3: Cross multiply
1,431,356,215.76x = 2,146,795,120.44 × 396,321,722.96 - Step 4: Simplify right side
1,431,356,215.76x = 850,821,540,974,901,504 - Step 5: Solve for x
x = 850,821,540,974,901,504/1,431,356,215.76 - Step 6: Final answer
x = 594,416,352.55
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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.