Finding the Fourth Proportional to 489,901,503.60, 734,001,949.80 and 317,289,466.80
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Solution
The fourth proportional to 489,901,503.60, 734,001,949.80 and 317,289,466.80 is: 475,383,491.52
Step by Step Solution
- Step 1: Write the proportion equation
489,901,503.60 : 734,001,949.80 = 317,289,466.80 : x - Step 2: Convert to fraction form
489,901,503.60/734,001,949.80 = 317,289,466.80/x - Step 3: Cross multiply
489,901,503.60x = 734,001,949.80 × 317,289,466.80 - Step 4: Simplify right side
489,901,503.60x = 232,891,087,282,202,368 - Step 5: Solve for x
x = 232,891,087,282,202,368/489,901,503.60 - Step 6: Final answer
x = 475,383,491.52
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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.