Finding the Fourth Proportional to 664,393,228.80, 996,291,244.80 and 255,313,420.80
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Solution
The fourth proportional to 664,393,228.80, 996,291,244.80 and 255,313,420.80 is: 382,855,385.63
Step by Step Solution
- Step 1: Write the proportion equation
664,393,228.80 : 996,291,244.80 = 255,313,420.80 : x - Step 2: Convert to fraction form
664,393,228.80/996,291,244.80 = 255,313,420.80/x - Step 3: Cross multiply
664,393,228.80x = 996,291,244.80 × 255,313,420.80 - Step 4: Simplify right side
664,393,228.80x = 254,366,525,822,978,208 - Step 5: Solve for x
x = 254,366,525,822,978,208/664,393,228.80 - Step 6: Final answer
x = 382,855,385.63
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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.