Home / 128,121,699.36-192,215,321.25-37,245,288.36

Finding the Fourth Proportional to 128,121,699.36, 192,215,321.25 and 37,245,288.36

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Solution

The fourth proportional to 128,121,699.36, 192,215,321.25 and 37,245,288.36 is: 55,877,459.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,121,699.36 : 192,215,321.25 = 37,245,288.36 : x
  2. Step 2: Convert to fraction form
    128,121,699.36/192,215,321.25 = 37,245,288.36/x
  3. Step 3: Cross multiply
    128,121,699.36x = 192,215,321.25 × 37,245,288.36
  4. Step 4: Simplify right side
    128,121,699.36x = 7,159,115,067,166,286
  5. Step 5: Solve for x
    x = 7,159,115,067,166,286/128,121,699.36
  6. Step 6: Final answer
    x = 55,877,459.50

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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.