Finding the Fourth Proportional to 6,378,903.42, 9,568,355.13 and 4,378,294.14
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Solution
The fourth proportional to 6,378,903.42, 9,568,355.13 and 4,378,294.14 is: 6,567,441.21
Step by Step Solution
- Step 1: Write the proportion equation
6,378,903.42 : 9,568,355.13 = 4,378,294.14 : x - Step 2: Convert to fraction form
6,378,903.42/9,568,355.13 = 4,378,294.14/x - Step 3: Cross multiply
6,378,903.42x = 9,568,355.13 × 4,378,294.14 - Step 4: Simplify right side
6,378,903.42x = 41,893,073,195,117.94 - Step 5: Solve for x
x = 41,893,073,195,117.94/6,378,903.42 - Step 6: Final answer
x = 6,567,441.21
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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.