Home / 20,455,451.40-30,679,828.56-8,324,424.84

Finding the Fourth Proportional to 20,455,451.40, 30,679,828.56 and 8,324,424.84

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Solution

The fourth proportional to 20,455,451.40, 30,679,828.56 and 8,324,424.84 is: 12,485,274.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,455,451.40 : 30,679,828.56 = 8,324,424.84 : x
  2. Step 2: Convert to fraction form
    20,455,451.40/30,679,828.56 = 8,324,424.84/x
  3. Step 3: Cross multiply
    20,455,451.40x = 30,679,828.56 × 8,324,424.84
  4. Step 4: Simplify right side
    20,455,451.40x = 255,391,926,951,805.41
  5. Step 5: Solve for x
    x = 255,391,926,951,805.41/20,455,451.40
  6. Step 6: Final answer
    x = 12,485,274.56

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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.