Finding the Fourth Proportional to 377,274,592.58, 520,633,604.94 and 212,261,768.42
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Solution
The fourth proportional to 377,274,592.58, 520,633,604.94 and 212,261,768.42 is: 292,918,240.07
Step by Step Solution
- Step 1: Write the proportion equation
377,274,592.58 : 520,633,604.94 = 212,261,768.42 : x - Step 2: Convert to fraction form
377,274,592.58/520,633,604.94 = 212,261,768.42/x - Step 3: Cross multiply
377,274,592.58x = 520,633,604.94 × 212,261,768.42 - Step 4: Simplify right side
377,274,592.58x = 110,510,609,683,444,048 - Step 5: Solve for x
x = 110,510,609,683,444,048/377,274,592.58 - Step 6: Final answer
x = 292,918,240.07
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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.