Home / 39,975,900.06-55,166,760.54-21,641,185.56

Finding the Fourth Proportional to 39,975,900.06, 55,166,760.54 and 21,641,185.56

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Solution

The fourth proportional to 39,975,900.06, 55,166,760.54 and 21,641,185.56 is: 29,864,846.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,975,900.06 : 55,166,760.54 = 21,641,185.56 : x
  2. Step 2: Convert to fraction form
    39,975,900.06/55,166,760.54 = 21,641,185.56/x
  3. Step 3: Cross multiply
    39,975,900.06x = 55,166,760.54 × 21,641,185.56
  4. Step 4: Simplify right side
    39,975,900.06x = 1,193,874,101,590,225.75
  5. Step 5: Solve for x
    x = 1,193,874,101,590,225.75/39,975,900.06
  6. Step 6: Final answer
    x = 29,864,846.06

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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.