Finding the Fourth Proportional to 489,402,758.80, 734,104,138.20 and 271,724,525.20
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Solution
The fourth proportional to 489,402,758.80, 734,104,138.20 and 271,724,525.20 is: 407,586,787.80
Step by Step Solution
- Step 1: Write the proportion equation
489,402,758.80 : 734,104,138.20 = 271,724,525.20 : x - Step 2: Convert to fraction form
489,402,758.80/734,104,138.20 = 271,724,525.20/x - Step 3: Cross multiply
489,402,758.80x = 734,104,138.20 × 271,724,525.20 - Step 4: Simplify right side
489,402,758.80x = 199,474,098,399,750,176 - Step 5: Solve for x
x = 199,474,098,399,750,176/489,402,758.80 - Step 6: Final answer
x = 407,586,787.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.