Home / 20,427,146.76-28,189,455.66-11,259,942.60

Finding the Fourth Proportional to 20,427,146.76, 28,189,455.66 and 11,259,942.60

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Solution

The fourth proportional to 20,427,146.76, 28,189,455.66 and 11,259,942.60 is: 15,538,717.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,427,146.76 : 28,189,455.66 = 11,259,942.60 : x
  2. Step 2: Convert to fraction form
    20,427,146.76/28,189,455.66 = 11,259,942.60/x
  3. Step 3: Cross multiply
    20,427,146.76x = 28,189,455.66 × 11,259,942.60
  4. Step 4: Simplify right side
    20,427,146.76x = 317,411,652,656,845.12
  5. Step 5: Solve for x
    x = 317,411,652,656,845.12/20,427,146.76
  6. Step 6: Final answer
    x = 15,538,717.00

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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.