Home / 20,673,402.56-31,015,011.36-6,489,978.56

Finding the Fourth Proportional to 20,673,402.56, 31,015,011.36 and 6,489,978.56

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Solution

The fourth proportional to 20,673,402.56, 31,015,011.36 and 6,489,978.56 is: 9,736,508.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,673,402.56 : 31,015,011.36 = 6,489,978.56 : x
  2. Step 2: Convert to fraction form
    20,673,402.56/31,015,011.36 = 6,489,978.56/x
  3. Step 3: Cross multiply
    20,673,402.56x = 31,015,011.36 × 6,489,978.56
  4. Step 4: Simplify right side
    20,673,402.56x = 201,286,758,764,556.44
  5. Step 5: Solve for x
    x = 201,286,758,764,556.44/20,673,402.56
  6. Step 6: Final answer
    x = 9,736,508.45

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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.