Finding the Fourth Proportional to 421,324,801.80, 581,429,183.06 and 233,166,787.08
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Solution
The fourth proportional to 421,324,801.80, 581,429,183.06 and 233,166,787.08 is: 321,770,695.55
Step by Step Solution
- Step 1: Write the proportion equation
421,324,801.80 : 581,429,183.06 = 233,166,787.08 : x - Step 2: Convert to fraction form
421,324,801.80/581,429,183.06 = 233,166,787.08/x - Step 3: Cross multiply
421,324,801.80x = 581,429,183.06 × 233,166,787.08 - Step 4: Simplify right side
421,324,801.80x = 135,569,974,527,483,520 - Step 5: Solve for x
x = 135,569,974,527,483,520/421,324,801.80 - Step 6: Final answer
x = 321,770,695.55
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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.