Home / 521,962,987.52-783,292,610.44-189,969,904.89

Finding the Fourth Proportional to 521,962,987.52, 783,292,610.44 and 189,969,904.89

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Solution

The fourth proportional to 521,962,987.52, 783,292,610.44 and 189,969,904.89 is: 285,081,559.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,962,987.52 : 783,292,610.44 = 189,969,904.89 : x
  2. Step 2: Convert to fraction form
    521,962,987.52/783,292,610.44 = 189,969,904.89/x
  3. Step 3: Cross multiply
    521,962,987.52x = 783,292,610.44 × 189,969,904.89
  4. Step 4: Simplify right side
    521,962,987.52x = 148,802,022,705,851,680
  5. Step 5: Solve for x
    x = 148,802,022,705,851,680/521,962,987.52
  6. Step 6: Final answer
    x = 285,081,559.93

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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.