Finding the Fourth Proportional to 489,328,243.80, 733,992,365.70 and 166,212,115.80
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Solution
The fourth proportional to 489,328,243.80, 733,992,365.70 and 166,212,115.80 is: 249,318,173.70
Step by Step Solution
- Step 1: Write the proportion equation
489,328,243.80 : 733,992,365.70 = 166,212,115.80 : x - Step 2: Convert to fraction form
489,328,243.80/733,992,365.70 = 166,212,115.80/x - Step 3: Cross multiply
489,328,243.80x = 733,992,365.70 × 166,212,115.80 - Step 4: Simplify right side
489,328,243.80x = 121,998,424,084,044,368 - Step 5: Solve for x
x = 121,998,424,084,044,368/489,328,243.80 - Step 6: Final answer
x = 249,318,173.70
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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.