Home / 128,115,857.70-192,155,124.15-37,229,969.70

Finding the Fourth Proportional to 128,115,857.70, 192,155,124.15 and 37,229,969.70

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Solution

The fourth proportional to 128,115,857.70, 192,155,124.15 and 37,229,969.70 is: 55,839,531.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,115,857.70 : 192,155,124.15 = 37,229,969.70 : x
  2. Step 2: Convert to fraction form
    128,115,857.70/192,155,124.15 = 37,229,969.70/x
  3. Step 3: Cross multiply
    128,115,857.70x = 192,155,124.15 × 37,229,969.70
  4. Step 4: Simplify right side
    128,115,857.70x = 7,153,929,449,804,239
  5. Step 5: Solve for x
    x = 7,153,929,449,804,239/128,115,857.70
  6. Step 6: Final answer
    x = 55,839,531.33

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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.