Home / 13,286,857.20-19,930,285.80-7,224,493.20

Finding the Fourth Proportional to 13,286,857.20, 19,930,285.80 and 7,224,493.20

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Solution

The fourth proportional to 13,286,857.20, 19,930,285.80 and 7,224,493.20 is: 10,836,739.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,857.20 : 19,930,285.80 = 7,224,493.20 : x
  2. Step 2: Convert to fraction form
    13,286,857.20/19,930,285.80 = 7,224,493.20/x
  3. Step 3: Cross multiply
    13,286,857.20x = 19,930,285.80 × 7,224,493.20
  4. Step 4: Simplify right side
    13,286,857.20x = 143,986,214,236,156.56
  5. Step 5: Solve for x
    x = 143,986,214,236,156.56/13,286,857.20
  6. Step 6: Final answer
    x = 10,836,739.80

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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.