Home / 20,832,739.20-28,736,458.56-13,768,320.96

Finding the Fourth Proportional to 20,832,739.20, 28,736,458.56 and 13,768,320.96

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Solution

The fourth proportional to 20,832,739.20, 28,736,458.56 and 13,768,320.96 is: 18,991,875.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,832,739.20 : 28,736,458.56 = 13,768,320.96 : x
  2. Step 2: Convert to fraction form
    20,832,739.20/28,736,458.56 = 13,768,320.96/x
  3. Step 3: Cross multiply
    20,832,739.20x = 28,736,458.56 × 13,768,320.96
  4. Step 4: Simplify right side
    20,832,739.20x = 395,652,784,707,819.44
  5. Step 5: Solve for x
    x = 395,652,784,707,819.44/20,832,739.20
  6. Step 6: Final answer
    x = 18,991,875.28

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.