Home / 128,060,971.20-192,062,707.20-58,907,358.72

Finding the Fourth Proportional to 128,060,971.20, 192,062,707.20 and 58,907,358.72

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Solution

The fourth proportional to 128,060,971.20, 192,062,707.20 and 58,907,358.72 is: 88,347,813.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,060,971.20 : 192,062,707.20 = 58,907,358.72 : x
  2. Step 2: Convert to fraction form
    128,060,971.20/192,062,707.20 = 58,907,358.72/x
  3. Step 3: Cross multiply
    128,060,971.20x = 192,062,707.20 × 58,907,358.72
  4. Step 4: Simplify right side
    128,060,971.20x = 11,313,906,789,764,726
  5. Step 5: Solve for x
    x = 11,313,906,789,764,726/128,060,971.20
  6. Step 6: Final answer
    x = 88,347,813.42

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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.