Home / 238,862,149,882.36-329,629,754,229.81-128,996,485,367.52

Finding the Fourth Proportional to 238,862,149,882.36, 329,629,754,229.81 and 128,996,485,367.52

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Solution

The fourth proportional to 238,862,149,882.36, 329,629,754,229.81 and 128,996,485,367.52 is: 178,015,142,998.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,862,149,882.36 : 329,629,754,229.81 = 128,996,485,367.52 : x
  2. Step 2: Convert to fraction form
    238,862,149,882.36/329,629,754,229.81 = 128,996,485,367.52/x
  3. Step 3: Cross multiply
    238,862,149,882.36x = 329,629,754,229.81 × 128,996,485,367.52
  4. Step 4: Simplify right side
    238,862,149,882.36x = 42,521,079,768,204,896,632,832
  5. Step 5: Solve for x
    x = 42,521,079,768,204,896,632,832/238,862,149,882.36
  6. Step 6: Final answer
    x = 178,015,142,998.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.