Finding the Fourth Proportional to 378,358,649.19, 522,134,704.94 and 204,518,393.19
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Solution
The fourth proportional to 378,358,649.19, 522,134,704.94 and 204,518,393.19 is: 282,235,257.77
Step by Step Solution
- Step 1: Write the proportion equation
378,358,649.19 : 522,134,704.94 = 204,518,393.19 : x - Step 2: Convert to fraction form
378,358,649.19/522,134,704.94 = 204,518,393.19/x - Step 3: Cross multiply
378,358,649.19x = 522,134,704.94 × 204,518,393.19 - Step 4: Simplify right side
378,358,649.19x = 106,786,150,882,040,960 - Step 5: Solve for x
x = 106,786,150,882,040,960/378,358,649.19 - Step 6: Final answer
x = 282,235,257.77
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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.