Finding the Fourth Proportional to 396,321,107.70, 594,481,661.55 and 137,450,291.70
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Solution
The fourth proportional to 396,321,107.70, 594,481,661.55 and 137,450,291.70 is: 206,175,437.55
Step by Step Solution
- Step 1: Write the proportion equation
396,321,107.70 : 594,481,661.55 = 137,450,291.70 : x - Step 2: Convert to fraction form
396,321,107.70/594,481,661.55 = 137,450,291.70/x - Step 3: Cross multiply
396,321,107.70x = 594,481,661.55 × 137,450,291.70 - Step 4: Simplify right side
396,321,107.70x = 81,711,677,790,348,160 - Step 5: Solve for x
x = 81,711,677,790,348,160/396,321,107.70 - Step 6: Final answer
x = 206,175,437.55
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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.