Home / 13,122,022.20-19,683,033.30-12,378,004.80

Finding the Fourth Proportional to 13,122,022.20, 19,683,033.30 and 12,378,004.80

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Solution

The fourth proportional to 13,122,022.20, 19,683,033.30 and 12,378,004.80 is: 18,567,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122,022.20 : 19,683,033.30 = 12,378,004.80 : x
  2. Step 2: Convert to fraction form
    13,122,022.20/19,683,033.30 = 12,378,004.80/x
  3. Step 3: Cross multiply
    13,122,022.20x = 19,683,033.30 × 12,378,004.80
  4. Step 4: Simplify right side
    13,122,022.20x = 243,636,680,665,959.88
  5. Step 5: Solve for x
    x = 243,636,680,665,959.88/13,122,022.20
  6. Step 6: Final answer
    x = 18,567,007.20

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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.