Finding the Fourth Proportional to 2,912,647,562.39, 4,020,546,695.72 and 1,909,129,799.99
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Solution
The fourth proportional to 2,912,647,562.39, 4,020,546,695.72 and 1,909,129,799.99 is: 2,635,315,583.03
Step by Step Solution
- Step 1: Write the proportion equation
2,912,647,562.39 : 4,020,546,695.72 = 1,909,129,799.99 : x - Step 2: Convert to fraction form
2,912,647,562.39/4,020,546,695.72 = 1,909,129,799.99/x - Step 3: Cross multiply
2,912,647,562.39x = 4,020,546,695.72 × 1,909,129,799.99 - Step 4: Simplify right side
2,912,647,562.39x = 7,675,745,509,050,378,240 - Step 5: Solve for x
x = 7,675,745,509,050,378,240/2,912,647,562.39 - Step 6: Final answer
x = 2,635,315,583.03
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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.