Home / 12,130,148.21-18,204,001.79-4,745,285.06

Finding the Fourth Proportional to 12,130,148.21, 18,204,001.79 and 4,745,285.06

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Solution

The fourth proportional to 12,130,148.21, 18,204,001.79 and 4,745,285.06 is: 7,121,362.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130,148.21 : 18,204,001.79 = 4,745,285.06 : x
  2. Step 2: Convert to fraction form
    12,130,148.21/18,204,001.79 = 4,745,285.06/x
  3. Step 3: Cross multiply
    12,130,148.21x = 18,204,001.79 × 4,745,285.06
  4. Step 4: Simplify right side
    12,130,148.21x = 86,383,177,611,553.81
  5. Step 5: Solve for x
    x = 86,383,177,611,553.81/12,130,148.21
  6. Step 6: Final answer
    x = 7,121,362.09

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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.