Finding the Fourth Proportional to 489,787,820.34, 675,907,168.05 and 269,771,257.14
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Solution
The fourth proportional to 489,787,820.34, 675,907,168.05 and 269,771,257.14 is: 372,284,321.62
Step by Step Solution
- Step 1: Write the proportion equation
489,787,820.34 : 675,907,168.05 = 269,771,257.14 : x - Step 2: Convert to fraction form
489,787,820.34/675,907,168.05 = 269,771,257.14/x - Step 3: Cross multiply
489,787,820.34x = 675,907,168.05 × 269,771,257.14 - Step 4: Simplify right side
489,787,820.34x = 182,340,326,434,785,728 - Step 5: Solve for x
x = 182,340,326,434,785,728/489,787,820.34 - Step 6: Final answer
x = 372,284,321.62
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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.