Finding the Fourth Proportional to 920,392,464.73, 1,270,104,905.32 and 518,496,851.49
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Solution
The fourth proportional to 920,392,464.73, 1,270,104,905.32 and 518,496,851.49 is: 715,504,982.61
Step by Step Solution
- Step 1: Write the proportion equation
920,392,464.73 : 1,270,104,905.32 = 518,496,851.49 : x - Step 2: Convert to fraction form
920,392,464.73/1,270,104,905.32 = 518,496,851.49/x - Step 3: Cross multiply
920,392,464.73x = 1,270,104,905.32 × 518,496,851.49 - Step 4: Simplify right side
920,392,464.73x = 658,545,394,469,128,320 - Step 5: Solve for x
x = 658,545,394,469,128,320/920,392,464.73 - Step 6: Final answer
x = 715,504,982.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.