Home / 20,271,178.25-27,974,201.07-10,978,742.82

Finding the Fourth Proportional to 20,271,178.25, 27,974,201.07 and 10,978,742.82

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Solution

The fourth proportional to 20,271,178.25, 27,974,201.07 and 10,978,742.82 is: 15,150,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,271,178.25 : 27,974,201.07 = 10,978,742.82 : x
  2. Step 2: Convert to fraction form
    20,271,178.25/27,974,201.07 = 10,978,742.82/x
  3. Step 3: Cross multiply
    20,271,178.25x = 27,974,201.07 × 10,978,742.82
  4. Step 4: Simplify right side
    20,271,178.25x = 307,121,559,142,498.81
  5. Step 5: Solve for x
    x = 307,121,559,142,498.81/20,271,178.25
  6. Step 6: Final answer
    x = 15,150,651.60

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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.