Home / 128,757,999.80-193,171,214.10-55,943,535.80

Finding the Fourth Proportional to 128,757,999.80, 193,171,214.10 and 55,943,535.80

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Solution

The fourth proportional to 128,757,999.80, 193,171,214.10 and 55,943,535.80 is: 83,930,169.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,757,999.80 : 193,171,214.10 = 55,943,535.80 : x
  2. Step 2: Convert to fraction form
    128,757,999.80/193,171,214.10 = 55,943,535.80/x
  3. Step 3: Cross multiply
    128,757,999.80x = 193,171,214.10 × 55,943,535.80
  4. Step 4: Simplify right side
    128,757,999.80x = 10,806,680,731,532,814
  5. Step 5: Solve for x
    x = 10,806,680,731,532,814/128,757,999.80
  6. Step 6: Final answer
    x = 83,930,169.37

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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.