Home / 12,529,926.80-18,782,448.60-5,786,579.60

Finding the Fourth Proportional to 12,529,926.80, 18,782,448.60 and 5,786,579.60

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Solution

The fourth proportional to 12,529,926.80, 18,782,448.60 and 5,786,579.60 is: 8,674,123.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529,926.80 : 18,782,448.60 = 5,786,579.60 : x
  2. Step 2: Convert to fraction form
    12,529,926.80/18,782,448.60 = 5,786,579.60/x
  3. Step 3: Cross multiply
    12,529,926.80x = 18,782,448.60 × 5,786,579.60
  4. Step 4: Simplify right side
    12,529,926.80x = 108,686,133,906,808.56
  5. Step 5: Solve for x
    x = 108,686,133,906,808.56/12,529,926.80
  6. Step 6: Final answer
    x = 8,674,123.61

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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.