Home / 20,683,735.53-28,543,206.79-11,392,170.85

Finding the Fourth Proportional to 20,683,735.53, 28,543,206.79 and 11,392,170.85

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Solution

The fourth proportional to 20,683,735.53, 28,543,206.79 and 11,392,170.85 is: 15,721,003.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683,735.53 : 28,543,206.79 = 11,392,170.85 : x
  2. Step 2: Convert to fraction form
    20,683,735.53/28,543,206.79 = 11,392,170.85/x
  3. Step 3: Cross multiply
    20,683,735.53x = 28,543,206.79 × 11,392,170.85
  4. Step 4: Simplify right side
    20,683,735.53x = 325,169,088,365,758.69
  5. Step 5: Solve for x
    x = 325,169,088,365,758.69/20,683,735.53
  6. Step 6: Final answer
    x = 15,721,003.97

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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.