Home / 621,703,732.47-858,026,391.39-353,844,694.23

Finding the Fourth Proportional to 621,703,732.47, 858,026,391.39 and 353,844,694.23

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Solution

The fourth proportional to 621,703,732.47, 858,026,391.39 and 353,844,694.23 is: 488,348,501.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,703,732.47 : 858,026,391.39 = 353,844,694.23 : x
  2. Step 2: Convert to fraction form
    621,703,732.47/858,026,391.39 = 353,844,694.23/x
  3. Step 3: Cross multiply
    621,703,732.47x = 858,026,391.39 × 353,844,694.23
  4. Step 4: Simplify right side
    621,703,732.47x = 303,608,086,102,664,896
  5. Step 5: Solve for x
    x = 303,608,086,102,664,896/621,703,732.47
  6. Step 6: Final answer
    x = 488,348,501.46

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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.