Home / 30,212,272.06-45,274,447.77-18,673,102.78

Finding the Fourth Proportional to 30,212,272.06, 45,274,447.77 and 18,673,102.78

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Solution

The fourth proportional to 30,212,272.06, 45,274,447.77 and 18,673,102.78 is: 27,982,483.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,212,272.06 : 45,274,447.77 = 18,673,102.78 : x
  2. Step 2: Convert to fraction form
    30,212,272.06/45,274,447.77 = 18,673,102.78/x
  3. Step 3: Cross multiply
    30,212,272.06x = 45,274,447.77 × 18,673,102.78
  4. Step 4: Simplify right side
    30,212,272.06x = 845,414,416,516,951.88
  5. Step 5: Solve for x
    x = 845,414,416,516,951.88/30,212,272.06
  6. Step 6: Final answer
    x = 27,982,483.90

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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.