Home / 853,258,004.97-1,279,887,007.76-239,842,230.72

Finding the Fourth Proportional to 853,258,004.97, 1,279,887,007.76 and 239,842,230.72

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Solution

The fourth proportional to 853,258,004.97, 1,279,887,007.76 and 239,842,230.72 is: 359,763,346.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,258,004.97 : 1,279,887,007.76 = 239,842,230.72 : x
  2. Step 2: Convert to fraction form
    853,258,004.97/1,279,887,007.76 = 239,842,230.72/x
  3. Step 3: Cross multiply
    853,258,004.97x = 1,279,887,007.76 × 239,842,230.72
  4. Step 4: Simplify right side
    853,258,004.97x = 306,970,955,010,392,512
  5. Step 5: Solve for x
    x = 306,970,955,010,392,512/853,258,004.97
  6. Step 6: Final answer
    x = 359,763,346.17

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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.