Home / 521,962,986.76-783,292,609.31-189,969,904.14

Finding the Fourth Proportional to 521,962,986.76, 783,292,609.31 and 189,969,904.14

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Solution

The fourth proportional to 521,962,986.76, 783,292,609.31 and 189,969,904.14 is: 285,081,558.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,962,986.76 : 783,292,609.31 = 189,969,904.14 : x
  2. Step 2: Convert to fraction form
    521,962,986.76/783,292,609.31 = 189,969,904.14/x
  3. Step 3: Cross multiply
    521,962,986.76x = 783,292,609.31 × 189,969,904.14
  4. Step 4: Simplify right side
    521,962,986.76x = 148,802,021,905,773,696
  5. Step 5: Solve for x
    x = 148,802,021,905,773,696/521,962,986.76
  6. Step 6: Final answer
    x = 285,081,558.81

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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.