Home / 28,729,727.21-39,647,123.72-15,677,273.81

Finding the Fourth Proportional to 28,729,727.21, 39,647,123.72 and 15,677,273.81

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Solution

The fourth proportional to 28,729,727.21, 39,647,123.72 and 15,677,273.81 is: 21,634,692.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,729,727.21 : 39,647,123.72 = 15,677,273.81 : x
  2. Step 2: Convert to fraction form
    28,729,727.21/39,647,123.72 = 15,677,273.81/x
  3. Step 3: Cross multiply
    28,729,727.21x = 39,647,123.72 × 15,677,273.81
  4. Step 4: Simplify right side
    28,729,727.21x = 621,558,814,060,763.88
  5. Step 5: Solve for x
    x = 621,558,814,060,763.88/28,729,727.21
  6. Step 6: Final answer
    x = 21,634,692.51

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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.