Home / 138,983,667.60-208,476,977.52-41,940,228.72

Finding the Fourth Proportional to 138,983,667.60, 208,476,977.52 and 41,940,228.72

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Solution

The fourth proportional to 138,983,667.60, 208,476,977.52 and 41,940,228.72 is: 62,910,788.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,983,667.60 : 208,476,977.52 = 41,940,228.72 : x
  2. Step 2: Convert to fraction form
    138,983,667.60/208,476,977.52 = 41,940,228.72/x
  3. Step 3: Cross multiply
    138,983,667.60x = 208,476,977.52 × 41,940,228.72
  4. Step 4: Simplify right side
    138,983,667.60x = 8,743,572,120,043,099
  5. Step 5: Solve for x
    x = 8,743,572,120,043,099/138,983,667.60
  6. Step 6: Final answer
    x = 62,910,788.52

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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.