Home / 20,455,361.52-28,227,963.60-11,162,623.44

Finding the Fourth Proportional to 20,455,361.52, 28,227,963.60 and 11,162,623.44

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Solution

The fourth proportional to 20,455,361.52, 28,227,963.60 and 11,162,623.44 is: 15,404,182.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,455,361.52 : 28,227,963.60 = 11,162,623.44 : x
  2. Step 2: Convert to fraction form
    20,455,361.52/28,227,963.60 = 11,162,623.44/x
  3. Step 3: Cross multiply
    20,455,361.52x = 28,227,963.60 × 11,162,623.44
  4. Step 4: Simplify right side
    20,455,361.52x = 315,098,128,144,826.81
  5. Step 5: Solve for x
    x = 315,098,128,144,826.81/20,455,361.52
  6. Step 6: Final answer
    x = 15,404,182.80

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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.