Home / 19,119,135.28-28,690,660.60-7,759,583.88

Finding the Fourth Proportional to 19,119,135.28, 28,690,660.60 and 7,759,583.88

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Solution

The fourth proportional to 19,119,135.28, 28,690,660.60 and 7,759,583.88 is: 11,644,228.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119,135.28 : 28,690,660.60 = 7,759,583.88 : x
  2. Step 2: Convert to fraction form
    19,119,135.28/28,690,660.60 = 7,759,583.88/x
  3. Step 3: Cross multiply
    19,119,135.28x = 28,690,660.60 × 7,759,583.88
  4. Step 4: Simplify right side
    19,119,135.28x = 222,627,587,498,311.12
  5. Step 5: Solve for x
    x = 222,627,587,498,311.12/19,119,135.28
  6. Step 6: Final answer
    x = 11,644,228.90

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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.