Home / 20,396,430.30-30,523,786.65-18,695,819.10

Finding the Fourth Proportional to 20,396,430.30, 30,523,786.65 and 18,695,819.10

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Solution

The fourth proportional to 20,396,430.30, 30,523,786.65 and 18,695,819.10 is: 27,978,777.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,396,430.30 : 30,523,786.65 = 18,695,819.10 : x
  2. Step 2: Convert to fraction form
    20,396,430.30/30,523,786.65 = 18,695,819.10/x
  3. Step 3: Cross multiply
    20,396,430.30x = 30,523,786.65 × 18,695,819.10
  4. Step 4: Simplify right side
    20,396,430.30x = 570,667,193,455,395
  5. Step 5: Solve for x
    x = 570,667,193,455,395/20,396,430.30
  6. Step 6: Final answer
    x = 27,978,777.91

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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.