Finding the Fourth Proportional to 489,787,821.09, 675,907,169.09 and 269,771,257.89
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Solution
The fourth proportional to 489,787,821.09, 675,907,169.09 and 269,771,257.89 is: 372,284,322.66
Step by Step Solution
- Step 1: Write the proportion equation
489,787,821.09 : 675,907,169.09 = 269,771,257.89 : x - Step 2: Convert to fraction form
489,787,821.09/675,907,169.09 = 269,771,257.89/x - Step 3: Cross multiply
489,787,821.09x = 675,907,169.09 × 269,771,257.89 - Step 4: Simplify right side
489,787,821.09x = 182,340,327,220,929,376 - Step 5: Solve for x
x = 182,340,327,220,929,376/489,787,821.09 - Step 6: Final answer
x = 372,284,322.66
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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.