Finding the Fourth Proportional to 245,608,281.46, 338,969,149.55 and 139,787,425.63
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Solution
The fourth proportional to 245,608,281.46, 338,969,149.55 and 139,787,425.63 is: 192,923,563.09
Step by Step Solution
- Step 1: Write the proportion equation
245,608,281.46 : 338,969,149.55 = 139,787,425.63 : x - Step 2: Convert to fraction form
245,608,281.46/338,969,149.55 = 139,787,425.63/x - Step 3: Cross multiply
245,608,281.46x = 338,969,149.55 × 139,787,425.63 - Step 4: Simplify right side
245,608,281.46x = 47,383,624,783,584,976 - Step 5: Solve for x
x = 47,383,624,783,584,976/245,608,281.46 - Step 6: Final answer
x = 192,923,563.09
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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.