Home / 55,440,469.87-83,102,061.92-20,881,918.69

Finding the Fourth Proportional to 55,440,469.87, 83,102,061.92 and 20,881,918.69

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Solution

The fourth proportional to 55,440,469.87, 83,102,061.92 and 20,881,918.69 is: 31,300,789.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,440,469.87 : 83,102,061.92 = 20,881,918.69 : x
  2. Step 2: Convert to fraction form
    55,440,469.87/83,102,061.92 = 20,881,918.69/x
  3. Step 3: Cross multiply
    55,440,469.87x = 83,102,061.92 × 20,881,918.69
  4. Step 4: Simplify right side
    55,440,469.87x = 1,735,330,499,672,620.75
  5. Step 5: Solve for x
    x = 1,735,330,499,672,620.75/55,440,469.87
  6. Step 6: Final answer
    x = 31,300,789.91

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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.