Home / 128,643,073,073.21-192,957,626,451.83-39,099,085,027.76

Finding the Fourth Proportional to 128,643,073,073.21, 192,957,626,451.83 and 39,099,085,027.76

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Solution

The fourth proportional to 128,643,073,073.21, 192,957,626,451.83 and 39,099,085,027.76 is: 58,646,505,118.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,643,073,073.21 : 192,957,626,451.83 = 39,099,085,027.76 : x
  2. Step 2: Convert to fraction form
    128,643,073,073.21/192,957,626,451.83 = 39,099,085,027.76/x
  3. Step 3: Cross multiply
    128,643,073,073.21x = 192,957,626,451.83 × 39,099,085,027.76
  4. Step 4: Simplify right side
    128,643,073,073.21x = 7,544,466,643,394,853,076,992
  5. Step 5: Solve for x
    x = 7,544,466,643,394,853,076,992/128,643,073,073.21
  6. Step 6: Final answer
    x = 58,646,505,118.09

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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.