Home / 13,181,879.20-19,739,641.20-8,669,725.60

Finding the Fourth Proportional to 13,181,879.20, 19,739,641.20 and 8,669,725.60

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Solution

The fourth proportional to 13,181,879.20, 19,739,641.20 and 8,669,725.60 is: 12,982,767.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181,879.20 : 19,739,641.20 = 8,669,725.60 : x
  2. Step 2: Convert to fraction form
    13,181,879.20/19,739,641.20 = 8,669,725.60/x
  3. Step 3: Cross multiply
    13,181,879.20x = 19,739,641.20 × 8,669,725.60
  4. Step 4: Simplify right side
    13,181,879.20x = 171,137,272,646,454.72
  5. Step 5: Solve for x
    x = 171,137,272,646,454.72/13,181,879.20
  6. Step 6: Final answer
    x = 12,982,767.48

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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.