Home / 149,365,940,639.89-206,125,619,111.92-80,777,353,753.68

Finding the Fourth Proportional to 149,365,940,639.89, 206,125,619,111.92 and 80,777,353,753.68

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Solution

The fourth proportional to 149,365,940,639.89, 206,125,619,111.92 and 80,777,353,753.68 is: 111,473,084,033.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,365,940,639.89 : 206,125,619,111.92 = 80,777,353,753.68 : x
  2. Step 2: Convert to fraction form
    149,365,940,639.89/206,125,619,111.92 = 80,777,353,753.68/x
  3. Step 3: Cross multiply
    149,365,940,639.89x = 206,125,619,111.92 × 80,777,353,753.68
  4. Step 4: Simplify right side
    149,365,940,639.89x = 16,650,282,052,699,453,128,704
  5. Step 5: Solve for x
    x = 16,650,282,052,699,453,128,704/149,365,940,639.89
  6. Step 6: Final answer
    x = 111,473,084,033.54

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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.