Home / 20,050,472.70-30,139,924.85-18,628,868.03

Finding the Fourth Proportional to 20,050,472.70, 30,139,924.85 and 18,628,868.03

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Solution

The fourth proportional to 20,050,472.70, 30,139,924.85 and 18,628,868.03 is: 28,002,964.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,050,472.70 : 30,139,924.85 = 18,628,868.03 : x
  2. Step 2: Convert to fraction form
    20,050,472.70/30,139,924.85 = 18,628,868.03/x
  3. Step 3: Cross multiply
    20,050,472.70x = 30,139,924.85 × 18,628,868.03
  4. Step 4: Simplify right side
    20,050,472.70x = 561,472,682,220,923.50
  5. Step 5: Solve for x
    x = 561,472,682,220,923.50/20,050,472.70
  6. Step 6: Final answer
    x = 28,002,964.85

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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.