Home / 521,962,987.26-783,292,610.06-189,969,904.64

Finding the Fourth Proportional to 521,962,987.26, 783,292,610.06 and 189,969,904.64

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Solution

The fourth proportional to 521,962,987.26, 783,292,610.06 and 189,969,904.64 is: 285,081,559.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,962,987.26 : 783,292,610.06 = 189,969,904.64 : x
  2. Step 2: Convert to fraction form
    521,962,987.26/783,292,610.06 = 189,969,904.64/x
  3. Step 3: Cross multiply
    521,962,987.26x = 783,292,610.06 × 189,969,904.64
  4. Step 4: Simplify right side
    521,962,987.26x = 148,802,022,438,314,880
  5. Step 5: Solve for x
    x = 148,802,022,438,314,880/521,962,987.26
  6. Step 6: Final answer
    x = 285,081,559.56

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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.