Finding the Fourth Proportional to 653,451,475.20, 980,177,212.80 and 505,498,300.80
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Solution
The fourth proportional to 653,451,475.20, 980,177,212.80 and 505,498,300.80 is: 758,247,451.20
Step by Step Solution
- Step 1: Write the proportion equation
653,451,475.20 : 980,177,212.80 = 505,498,300.80 : x - Step 2: Convert to fraction form
653,451,475.20/980,177,212.80 = 505,498,300.80/x - Step 3: Cross multiply
653,451,475.20x = 980,177,212.80 × 505,498,300.80 - Step 4: Simplify right side
653,451,475.20x = 495,477,915,553,280,000 - Step 5: Solve for x
x = 495,477,915,553,280,000/653,451,475.20 - Step 6: Final answer
x = 758,247,451.20
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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.