Finding the Fourth Proportional to 664,392,816.80, 996,290,626.80 and 255,313,008.80
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Solution
The fourth proportional to 664,392,816.80, 996,290,626.80 and 255,313,008.80 is: 382,854,767.75
Step by Step Solution
- Step 1: Write the proportion equation
664,392,816.80 : 996,290,626.80 = 255,313,008.80 : x - Step 2: Convert to fraction form
664,392,816.80/996,290,626.80 = 255,313,008.80/x - Step 3: Cross multiply
664,392,816.80x = 996,290,626.80 × 255,313,008.80 - Step 4: Simplify right side
664,392,816.80x = 254,365,957,567,545,920 - Step 5: Solve for x
x = 254,365,957,567,545,920/664,392,816.80 - Step 6: Final answer
x = 382,854,767.75
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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.