Finding the Fourth Proportional to 378,358,647.50, 522,134,702.61 and 204,518,391.50
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Solution
The fourth proportional to 378,358,647.50, 522,134,702.61 and 204,518,391.50 is: 282,235,255.44
Step by Step Solution
- Step 1: Write the proportion equation
378,358,647.50 : 522,134,702.61 = 204,518,391.50 : x - Step 2: Convert to fraction form
378,358,647.50/522,134,702.61 = 204,518,391.50/x - Step 3: Cross multiply
378,358,647.50x = 522,134,702.61 × 204,518,391.50 - Step 4: Simplify right side
378,358,647.50x = 106,786,149,524,666,448 - Step 5: Solve for x
x = 106,786,149,524,666,448/378,358,647.50 - Step 6: Final answer
x = 282,235,255.44
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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.