Home / 128,517,112.36-192,803,323.99-39,883,932.51

Finding the Fourth Proportional to 128,517,112.36, 192,803,323.99 and 39,883,932.51

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Solution

The fourth proportional to 128,517,112.36, 192,803,323.99 and 39,883,932.51 is: 59,834,481.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,517,112.36 : 192,803,323.99 = 39,883,932.51 : x
  2. Step 2: Convert to fraction form
    128,517,112.36/192,803,323.99 = 39,883,932.51/x
  3. Step 3: Cross multiply
    128,517,112.36x = 192,803,323.99 × 39,883,932.51
  4. Step 4: Simplify right side
    128,517,112.36x = 7,689,754,761,720,824
  5. Step 5: Solve for x
    x = 7,689,754,761,720,824/128,517,112.36
  6. Step 6: Final answer
    x = 59,834,481.34

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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.