Finding the Fourth Proportional to 434,446,246.80, 651,669,370.20 and 259,850,163.60
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Solution
The fourth proportional to 434,446,246.80, 651,669,370.20 and 259,850,163.60 is: 389,775,245.40
Step by Step Solution
- Step 1: Write the proportion equation
434,446,246.80 : 651,669,370.20 = 259,850,163.60 : x - Step 2: Convert to fraction form
434,446,246.80/651,669,370.20 = 259,850,163.60/x - Step 3: Cross multiply
434,446,246.80x = 651,669,370.20 × 259,850,163.60 - Step 4: Simplify right side
434,446,246.80x = 169,336,392,459,578,976 - Step 5: Solve for x
x = 169,336,392,459,578,976/434,446,246.80 - Step 6: Final answer
x = 389,775,245.40
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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.