Home / 165,464,840.52-247,874,372.60-128,902,031.82

Finding the Fourth Proportional to 165,464,840.52, 247,874,372.60 and 128,902,031.82

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Solution

The fourth proportional to 165,464,840.52, 247,874,372.60 and 128,902,031.82 is: 193,101,508.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,464,840.52 : 247,874,372.60 = 128,902,031.82 : x
  2. Step 2: Convert to fraction form
    165,464,840.52/247,874,372.60 = 128,902,031.82/x
  3. Step 3: Cross multiply
    165,464,840.52x = 247,874,372.60 × 128,902,031.82
  4. Step 4: Simplify right side
    165,464,840.52x = 31,951,510,263,603,224
  5. Step 5: Solve for x
    x = 31,951,510,263,603,224/165,464,840.52
  6. Step 6: Final answer
    x = 193,101,508.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.