Home / 621,542,648.16-857,728,725.12-343,084,097.88

Finding the Fourth Proportional to 621,542,648.16, 857,728,725.12 and 343,084,097.88

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Solution

The fourth proportional to 621,542,648.16, 857,728,725.12 and 343,084,097.88 is: 473,455,983.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,542,648.16 : 857,728,725.12 = 343,084,097.88 : x
  2. Step 2: Convert to fraction form
    621,542,648.16/857,728,725.12 = 343,084,097.88/x
  3. Step 3: Cross multiply
    621,542,648.16x = 857,728,725.12 × 343,084,097.88
  4. Step 4: Simplify right side
    621,542,648.16x = 294,273,085,883,557,696
  5. Step 5: Solve for x
    x = 294,273,085,883,557,696/621,542,648.16
  6. Step 6: Final answer
    x = 473,455,983.68

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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.