Home / 650,670,665.40-976,005,998.10-219,842,940.60

Finding the Fourth Proportional to 650,670,665.40, 976,005,998.10 and 219,842,940.60

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Solution

The fourth proportional to 650,670,665.40, 976,005,998.10 and 219,842,940.60 is: 329,764,410.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,670,665.40 : 976,005,998.10 = 219,842,940.60 : x
  2. Step 2: Convert to fraction form
    650,670,665.40/976,005,998.10 = 219,842,940.60/x
  3. Step 3: Cross multiply
    650,670,665.40x = 976,005,998.10 × 219,842,940.60
  4. Step 4: Simplify right side
    650,670,665.40x = 214,568,028,665,542,016
  5. Step 5: Solve for x
    x = 214,568,028,665,542,016/650,670,665.40
  6. Step 6: Final answer
    x = 329,764,410.90

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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.