Home / 128,115,859.70-192,155,127.15-37,229,971.70

Finding the Fourth Proportional to 128,115,859.70, 192,155,127.15 and 37,229,971.70

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Solution

The fourth proportional to 128,115,859.70, 192,155,127.15 and 37,229,971.70 is: 55,839,534.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,115,859.70 : 192,155,127.15 = 37,229,971.70 : x
  2. Step 2: Convert to fraction form
    128,115,859.70/192,155,127.15 = 37,229,971.70/x
  3. Step 3: Cross multiply
    128,115,859.70x = 192,155,127.15 × 37,229,971.70
  4. Step 4: Simplify right side
    128,115,859.70x = 7,153,929,945,804,402
  5. Step 5: Solve for x
    x = 7,153,929,945,804,402/128,115,859.70
  6. Step 6: Final answer
    x = 55,839,534.33

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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.