Finding the Fourth Proportional to 1,028,339,442.07, 1,419,542,888.05 and 694,264,502.42
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Solution
The fourth proportional to 1,028,339,442.07, 1,419,542,888.05 and 694,264,502.42 is: 958,378,329.68
Step by Step Solution
- Step 1: Write the proportion equation
1,028,339,442.07 : 1,419,542,888.05 = 694,264,502.42 : x - Step 2: Convert to fraction form
1,028,339,442.07/1,419,542,888.05 = 694,264,502.42/x - Step 3: Cross multiply
1,028,339,442.07x = 1,419,542,888.05 × 694,264,502.42 - Step 4: Simplify right side
1,028,339,442.07x = 985,538,236,835,882,880 - Step 5: Solve for x
x = 985,538,236,835,882,880/1,028,339,442.07 - Step 6: Final answer
x = 958,378,329.68
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1.5x scale
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.