Home / 20,781,297.60-28,679,076.36-11,613,940.08

Finding the Fourth Proportional to 20,781,297.60, 28,679,076.36 and 11,613,940.08

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Solution

The fourth proportional to 20,781,297.60, 28,679,076.36 and 11,613,940.08 is: 16,027,732.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,781,297.60 : 28,679,076.36 = 11,613,940.08 : x
  2. Step 2: Convert to fraction form
    20,781,297.60/28,679,076.36 = 11,613,940.08/x
  3. Step 3: Cross multiply
    20,781,297.60x = 28,679,076.36 × 11,613,940.08
  4. Step 4: Simplify right side
    20,781,297.60x = 333,077,074,394,784.50
  5. Step 5: Solve for x
    x = 333,077,074,394,784.50/20,781,297.60
  6. Step 6: Final answer
    x = 16,027,732.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.