Home / 13,321,455.81-18,383,762.35-7,814,924.34

Finding the Fourth Proportional to 13,321,455.81, 18,383,762.35 and 7,814,924.34

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Solution

The fourth proportional to 13,321,455.81, 18,383,762.35 and 7,814,924.34 is: 10,784,685.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321,455.81 : 18,383,762.35 = 7,814,924.34 : x
  2. Step 2: Convert to fraction form
    13,321,455.81/18,383,762.35 = 7,814,924.34/x
  3. Step 3: Cross multiply
    13,321,455.81x = 18,383,762.35 × 7,814,924.34
  4. Step 4: Simplify right side
    13,321,455.81x = 143,667,711,849,790.59
  5. Step 5: Solve for x
    x = 143,667,711,849,790.59/13,321,455.81
  6. Step 6: Final answer
    x = 10,784,685.54

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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.