Home / 128,110,180.51-192,084,521.25-108,686,208.79

Finding the Fourth Proportional to 128,110,180.51, 192,084,521.25 and 108,686,208.79

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Solution

The fourth proportional to 128,110,180.51, 192,084,521.25 and 108,686,208.79 is: 162,960,806.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,110,180.51 : 192,084,521.25 = 108,686,208.79 : x
  2. Step 2: Convert to fraction form
    128,110,180.51/192,084,521.25 = 108,686,208.79/x
  3. Step 3: Cross multiply
    128,110,180.51x = 192,084,521.25 × 108,686,208.79
  4. Step 4: Simplify right side
    128,110,180.51x = 20,876,938,381,424,480
  5. Step 5: Solve for x
    x = 20,876,938,381,424,480/128,110,180.51
  6. Step 6: Final answer
    x = 162,960,806.85

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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.