Finding the Fourth Proportional to 489,889,750.60, 734,834,625.90 and 432,494,122.60
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Solution
The fourth proportional to 489,889,750.60, 734,834,625.90 and 432,494,122.60 is: 648,741,183.90
Step by Step Solution
- Step 1: Write the proportion equation
489,889,750.60 : 734,834,625.90 = 432,494,122.60 : x - Step 2: Convert to fraction form
489,889,750.60/734,834,625.90 = 432,494,122.60/x - Step 3: Cross multiply
489,889,750.60x = 734,834,625.90 × 432,494,122.60 - Step 4: Simplify right side
489,889,750.60x = 317,811,656,784,719,744 - Step 5: Solve for x
x = 317,811,656,784,719,744/489,889,750.60 - Step 6: Final answer
x = 648,741,183.90
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1.5x scale
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.