Home / 128,429,736.40-192,959,177.40-96,579,240.40

Finding the Fourth Proportional to 128,429,736.40, 192,959,177.40 and 96,579,240.40

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Solution

The fourth proportional to 128,429,736.40, 192,959,177.40 and 96,579,240.40 is: 145,105,419.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,429,736.40 : 192,959,177.40 = 96,579,240.40 : x
  2. Step 2: Convert to fraction form
    128,429,736.40/192,959,177.40 = 96,579,240.40/x
  3. Step 3: Cross multiply
    128,429,736.40x = 192,959,177.40 × 96,579,240.40
  4. Step 4: Simplify right side
    128,429,736.40x = 18,635,850,781,500,848
  5. Step 5: Solve for x
    x = 18,635,850,781,500,848/128,429,736.40
  6. Step 6: Final answer
    x = 145,105,419.54

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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.