Home / 20,646,917.28-28,493,477.58-11,355,205.73

Finding the Fourth Proportional to 20,646,917.28, 28,493,477.58 and 11,355,205.73

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Solution

The fourth proportional to 20,646,917.28, 28,493,477.58 and 11,355,205.73 is: 15,670,586.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,646,917.28 : 28,493,477.58 = 11,355,205.73 : x
  2. Step 2: Convert to fraction form
    20,646,917.28/28,493,477.58 = 11,355,205.73/x
  3. Step 3: Cross multiply
    20,646,917.28x = 28,493,477.58 × 11,355,205.73
  4. Step 4: Simplify right side
    20,646,917.28x = 323,549,299,741,575.12
  5. Step 5: Solve for x
    x = 323,549,299,741,575.12/20,646,917.28
  6. Step 6: Final answer
    x = 15,670,586.33

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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.