Home / 621,542,725.66-857,728,831.35-343,084,175.74

Finding the Fourth Proportional to 621,542,725.66, 857,728,831.35 and 343,084,175.74

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Solution

The fourth proportional to 621,542,725.66, 857,728,831.35 and 343,084,175.74 is: 473,456,090.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,542,725.66 : 857,728,831.35 = 343,084,175.74 : x
  2. Step 2: Convert to fraction form
    621,542,725.66/857,728,831.35 = 343,084,175.74/x
  3. Step 3: Cross multiply
    621,542,725.66x = 857,728,831.35 × 343,084,175.74
  4. Step 4: Simplify right side
    621,542,725.66x = 294,273,189,112,148,224
  5. Step 5: Solve for x
    x = 294,273,189,112,148,224/621,542,725.66
  6. Step 6: Final answer
    x = 473,456,090.73

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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.