Home / 839,287,940,540.80-1,158,217,348,978.30-453,912,286,391.56

Finding the Fourth Proportional to 839,287,940,540.80, 1,158,217,348,978.30 and 453,912,286,391.56

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Solution

The fourth proportional to 839,287,940,540.80, 1,158,217,348,978.30 and 453,912,286,391.56 is: 626,398,950,370.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,287,940,540.80 : 1,158,217,348,978.30 = 453,912,286,391.56 : x
  2. Step 2: Convert to fraction form
    839,287,940,540.80/1,158,217,348,978.30 = 453,912,286,391.56/x
  3. Step 3: Cross multiply
    839,287,940,540.80x = 1,158,217,348,978.30 × 453,912,286,391.56
  4. Step 4: Simplify right side
    839,287,940,540.80x = 525,729,085,013,111,531,896,832
  5. Step 5: Solve for x
    x = 525,729,085,013,111,531,896,832/839,287,940,540.80
  6. Step 6: Final answer
    x = 626,398,950,370.19

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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.