Home / 12,476,769.20-18,713,771.40-10,228,986.80

Finding the Fourth Proportional to 12,476,769.20, 18,713,771.40 and 10,228,986.80

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Solution

The fourth proportional to 12,476,769.20, 18,713,771.40 and 10,228,986.80 is: 15,342,346.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476,769.20 : 18,713,771.40 = 10,228,986.80 : x
  2. Step 2: Convert to fraction form
    12,476,769.20/18,713,771.40 = 10,228,986.80/x
  3. Step 3: Cross multiply
    12,476,769.20x = 18,713,771.40 × 10,228,986.80
  4. Step 4: Simplify right side
    12,476,769.20x = 191,422,920,628,817.53
  5. Step 5: Solve for x
    x = 191,422,920,628,817.53/12,476,769.20
  6. Step 6: Final answer
    x = 15,342,346.85

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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.