Finding the Fourth Proportional to 664,302,605.20, 996,453,907.80 and 492,115,721.20
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Solution
The fourth proportional to 664,302,605.20, 996,453,907.80 and 492,115,721.20 is: 738,173,581.80
Step by Step Solution
- Step 1: Write the proportion equation
664,302,605.20 : 996,453,907.80 = 492,115,721.20 : x - Step 2: Convert to fraction form
664,302,605.20/996,453,907.80 = 492,115,721.20/x - Step 3: Cross multiply
664,302,605.20x = 996,453,907.80 × 492,115,721.20 - Step 4: Simplify right side
664,302,605.20x = 490,370,633,479,555,264 - Step 5: Solve for x
x = 490,370,633,479,555,264/664,302,605.20 - Step 6: Final answer
x = 738,173,581.80
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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.