Finding the Fourth Proportional to 238,328,730.87, 328,921,203.77 and 139,234,249
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Solution
The fourth proportional to 238,328,730.87, 328,921,203.77 and 139,234,249 is: 192,159,361.65
Step by Step Solution
- Step 1: Write the proportion equation
238,328,730.87 : 328,921,203.77 = 139,234,249 : x - Step 2: Convert to fraction form
238,328,730.87/328,921,203.77 = 139,234,249/x - Step 3: Cross multiply
238,328,730.87x = 328,921,203.77 × 139,234,249 - Step 4: Simplify right side
238,328,730.87x = 45,797,096,787,091,920 - Step 5: Solve for x
x = 45,797,096,787,091,920/238,328,730.87 - Step 6: Final answer
x = 192,159,361.65
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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.