Home / 19,540,285.60-29,305,179.60-8,178,383.20

Finding the Fourth Proportional to 19,540,285.60, 29,305,179.60 and 8,178,383.20

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Solution

The fourth proportional to 19,540,285.60, 29,305,179.60 and 8,178,383.20 is: 12,265,377.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540,285.60 : 29,305,179.60 = 8,178,383.20 : x
  2. Step 2: Convert to fraction form
    19,540,285.60/29,305,179.60 = 8,178,383.20/x
  3. Step 3: Cross multiply
    19,540,285.60x = 29,305,179.60 × 8,178,383.20
  4. Step 4: Simplify right side
    19,540,285.60x = 239,668,988,513,622.75
  5. Step 5: Solve for x
    x = 239,668,988,513,622.75/19,540,285.60
  6. Step 6: Final answer
    x = 12,265,377.97

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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.