Home / 312,238,629.66-430,889,815.44-171,087,420.33

Finding the Fourth Proportional to 312,238,629.66, 430,889,815.44 and 171,087,420.33

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Solution

The fourth proportional to 312,238,629.66, 430,889,815.44 and 171,087,420.33 is: 236,100,917.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,238,629.66 : 430,889,815.44 = 171,087,420.33 : x
  2. Step 2: Convert to fraction form
    312,238,629.66/430,889,815.44 = 171,087,420.33/x
  3. Step 3: Cross multiply
    312,238,629.66x = 430,889,815.44 × 171,087,420.33
  4. Step 4: Simplify right side
    312,238,629.66x = 73,719,826,970,099,408
  5. Step 5: Solve for x
    x = 73,719,826,970,099,408/312,238,629.66
  6. Step 6: Final answer
    x = 236,100,917.59

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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.