Finding the Fourth Proportional to 664,393,060.80, 996,290,992.80 and 255,313,252.80
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Solution
The fourth proportional to 664,393,060.80, 996,290,992.80 and 255,313,252.80 is: 382,855,133.68
Step by Step Solution
- Step 1: Write the proportion equation
664,393,060.80 : 996,290,992.80 = 255,313,252.80 : x - Step 2: Convert to fraction form
664,393,060.80/996,290,992.80 = 255,313,252.80/x - Step 3: Cross multiply
664,393,060.80x = 996,290,992.80 × 255,313,252.80 - Step 4: Simplify right side
664,393,060.80x = 254,366,294,107,109,376 - Step 5: Solve for x
x = 254,366,294,107,109,376/664,393,060.80 - Step 6: Final answer
x = 382,855,133.68
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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.