Home / 20,489,374.40-30,713,066.40-11,965,323.20

Finding the Fourth Proportional to 20,489,374.40, 30,713,066.40 and 11,965,323.20

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Solution

The fourth proportional to 20,489,374.40, 30,713,066.40 and 11,965,323.20 is: 17,935,724.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,489,374.40 : 30,713,066.40 = 11,965,323.20 : x
  2. Step 2: Convert to fraction form
    20,489,374.40/30,713,066.40 = 11,965,323.20/x
  3. Step 3: Cross multiply
    20,489,374.40x = 30,713,066.40 × 11,965,323.20
  4. Step 4: Simplify right side
    20,489,374.40x = 367,491,765,939,060.44
  5. Step 5: Solve for x
    x = 367,491,765,939,060.44/20,489,374.40
  6. Step 6: Final answer
    x = 17,935,724.09

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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.