Home / 21,220,148.67-31,797,735.21-14,277,914.12

Finding the Fourth Proportional to 21,220,148.67, 31,797,735.21 and 14,277,914.12

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Solution

The fourth proportional to 21,220,148.67, 31,797,735.21 and 14,277,914.12 is: 21,395,011.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,220,148.67 : 31,797,735.21 = 14,277,914.12 : x
  2. Step 2: Convert to fraction form
    21,220,148.67/31,797,735.21 = 14,277,914.12/x
  3. Step 3: Cross multiply
    21,220,148.67x = 31,797,735.21 × 14,277,914.12
  4. Step 4: Simplify right side
    21,220,148.67x = 454,005,332,538,880.12
  5. Step 5: Solve for x
    x = 454,005,332,538,880.12/21,220,148.67
  6. Step 6: Final answer
    x = 21,395,011.86

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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.