Finding the Fourth Proportional to 1,028,324,418.26, 1,542,000,372.50 and 398,351,525.81
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Solution
The fourth proportional to 1,028,324,418.26, 1,542,000,372.50 and 398,351,525.81 is: 597,338,923.66
Step by Step Solution
- Step 1: Write the proportion equation
1,028,324,418.26 : 1,542,000,372.50 = 398,351,525.81 : x - Step 2: Convert to fraction form
1,028,324,418.26/1,542,000,372.50 = 398,351,525.81/x - Step 3: Cross multiply
1,028,324,418.26x = 1,542,000,372.50 × 398,351,525.81 - Step 4: Simplify right side
1,028,324,418.26x = 614,258,201,178,249,216 - Step 5: Solve for x
x = 614,258,201,178,249,216/1,028,324,418.26 - Step 6: Final answer
x = 597,338,923.66
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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.