Home / 129,007,013.13-192,535,887.03-120,259,777.38

Finding the Fourth Proportional to 129,007,013.13, 192,535,887.03 and 120,259,777.38

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Solution

The fourth proportional to 129,007,013.13, 192,535,887.03 and 120,259,777.38 is: 179,481,117.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,007,013.13 : 192,535,887.03 = 120,259,777.38 : x
  2. Step 2: Convert to fraction form
    129,007,013.13/192,535,887.03 = 120,259,777.38/x
  3. Step 3: Cross multiply
    129,007,013.13x = 192,535,887.03 × 120,259,777.38
  4. Step 4: Simplify right side
    129,007,013.13x = 23,154,322,911,888,628
  5. Step 5: Solve for x
    x = 23,154,322,911,888,628/129,007,013.13
  6. Step 6: Final answer
    x = 179,481,117.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.