Finding the Fourth Proportional to 448,907,711.70, 673,361,567.55 and 423,965,414.10
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Solution
The fourth proportional to 448,907,711.70, 673,361,567.55 and 423,965,414.10 is: 635,948,121.15
Step by Step Solution
- Step 1: Write the proportion equation
448,907,711.70 : 673,361,567.55 = 423,965,414.10 : x - Step 2: Convert to fraction form
448,907,711.70/673,361,567.55 = 423,965,414.10/x - Step 3: Cross multiply
448,907,711.70x = 673,361,567.55 × 423,965,414.10 - Step 4: Simplify right side
448,907,711.70x = 285,482,015,825,360,864 - Step 5: Solve for x
x = 285,482,015,825,360,864/448,907,711.70 - Step 6: Final answer
x = 635,948,121.15
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1.5x scale
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.