Home / 262,332,005.10-393,498,007.65-258,505,629.90

Finding the Fourth Proportional to 262,332,005.10, 393,498,007.65 and 258,505,629.90

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Solution

The fourth proportional to 262,332,005.10, 393,498,007.65 and 258,505,629.90 is: 387,758,444.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,332,005.10 : 393,498,007.65 = 258,505,629.90 : x
  2. Step 2: Convert to fraction form
    262,332,005.10/393,498,007.65 = 258,505,629.90/x
  3. Step 3: Cross multiply
    262,332,005.10x = 393,498,007.65 × 258,505,629.90
  4. Step 4: Simplify right side
    262,332,005.10x = 101,721,450,331,958,272
  5. Step 5: Solve for x
    x = 101,721,450,331,958,272/262,332,005.10
  6. Step 6: Final answer
    x = 387,758,444.85

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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.