Home / 128,633,007.36-192,840,988.32-55,794,950.76

Finding the Fourth Proportional to 128,633,007.36, 192,840,988.32 and 55,794,950.76

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Solution

The fourth proportional to 128,633,007.36, 192,840,988.32 and 55,794,950.76 is: 83,645,354.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,633,007.36 : 192,840,988.32 = 55,794,950.76 : x
  2. Step 2: Convert to fraction form
    128,633,007.36/192,840,988.32 = 55,794,950.76/x
  3. Step 3: Cross multiply
    128,633,007.36x = 192,840,988.32 × 55,794,950.76
  4. Step 4: Simplify right side
    128,633,007.36x = 10,759,553,447,824,134
  5. Step 5: Solve for x
    x = 10,759,553,447,824,134/128,633,007.36
  6. Step 6: Final answer
    x = 83,645,354.09

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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.