Finding the Fourth Proportional to 1,304,734,394.70, 1,800,533,761.47 and 718,023,530.70
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Solution
The fourth proportional to 1,304,734,394.70, 1,800,533,761.47 and 718,023,530.70 is: 990,872,635.69
Step by Step Solution
- Step 1: Write the proportion equation
1,304,734,394.70 : 1,800,533,761.47 = 718,023,530.70 : x - Step 2: Convert to fraction form
1,304,734,394.70/1,800,533,761.47 = 718,023,530.70/x - Step 3: Cross multiply
1,304,734,394.70x = 1,800,533,761.47 × 718,023,530.70 - Step 4: Simplify right side
1,304,734,394.70x = 1,292,825,608,555,241,216 - Step 5: Solve for x
x = 1,292,825,608,555,241,216/1,304,734,394.70 - Step 6: Final answer
x = 990,872,635.69
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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.