Home / 13,240,467.60-19,879,363.80-8,201,619.60

Finding the Fourth Proportional to 13,240,467.60, 19,879,363.80 and 8,201,619.60

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Solution

The fourth proportional to 13,240,467.60, 19,879,363.80 and 8,201,619.60 is: 12,313,989.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240,467.60 : 19,879,363.80 = 8,201,619.60 : x
  2. Step 2: Convert to fraction form
    13,240,467.60/19,879,363.80 = 8,201,619.60/x
  3. Step 3: Cross multiply
    13,240,467.60x = 19,879,363.80 × 8,201,619.60
  4. Step 4: Simplify right side
    13,240,467.60x = 163,042,979,777,610.47
  5. Step 5: Solve for x
    x = 163,042,979,777,610.47/13,240,467.60
  6. Step 6: Final answer
    x = 12,313,989.56

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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.