Home / 128,040,918.21-192,097,338.89-51,417,754.83

Finding the Fourth Proportional to 128,040,918.21, 192,097,338.89 and 51,417,754.83

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Solution

The fourth proportional to 128,040,918.21, 192,097,338.89 and 51,417,754.83 is: 77,141,073.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,040,918.21 : 192,097,338.89 = 51,417,754.83 : x
  2. Step 2: Convert to fraction form
    128,040,918.21/192,097,338.89 = 51,417,754.83/x
  3. Step 3: Cross multiply
    128,040,918.21x = 192,097,338.89 × 51,417,754.83
  4. Step 4: Simplify right side
    128,040,918.21x = 9,877,213,874,284,354
  5. Step 5: Solve for x
    x = 9,877,213,874,284,354/128,040,918.21
  6. Step 6: Final answer
    x = 77,141,073.43

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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.