Finding the Fourth Proportional to 664,143,600.20, 996,215,400.30 and 626,520,201.80
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Solution
The fourth proportional to 664,143,600.20, 996,215,400.30 and 626,520,201.80 is: 939,780,302.70
Step by Step Solution
- Step 1: Write the proportion equation
664,143,600.20 : 996,215,400.30 = 626,520,201.80 : x - Step 2: Convert to fraction form
664,143,600.20/996,215,400.30 = 626,520,201.80/x - Step 3: Cross multiply
664,143,600.20x = 996,215,400.30 × 626,520,201.80 - Step 4: Simplify right side
664,143,600.20x = 624,149,073,632,223,744 - Step 5: Solve for x
x = 624,149,073,632,223,744/664,143,600.20 - Step 6: Final answer
x = 939,780,302.70
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Double scale
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Similar ratio
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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.