Home / 128,744,512.80-193,150,983.60-55,930,048.80

Finding the Fourth Proportional to 128,744,512.80, 193,150,983.60 and 55,930,048.80

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Solution

The fourth proportional to 128,744,512.80, 193,150,983.60 and 55,930,048.80 is: 83,909,936.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,744,512.80 : 193,150,983.60 = 55,930,048.80 : x
  2. Step 2: Convert to fraction form
    128,744,512.80/193,150,983.60 = 55,930,048.80/x
  3. Step 3: Cross multiply
    128,744,512.80x = 193,150,983.60 × 55,930,048.80
  4. Step 4: Simplify right side
    128,744,512.80x = 10,802,943,938,515,998
  5. Step 5: Solve for x
    x = 10,802,943,938,515,998/128,744,512.80
  6. Step 6: Final answer
    x = 83,909,936.85

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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.