Home / 20,736,072.70-31,104,109.05-15,585,250.30

Finding the Fourth Proportional to 20,736,072.70, 31,104,109.05 and 15,585,250.30

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Solution

The fourth proportional to 20,736,072.70, 31,104,109.05 and 15,585,250.30 is: 23,377,875.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,072.70 : 31,104,109.05 = 15,585,250.30 : x
  2. Step 2: Convert to fraction form
    20,736,072.70/31,104,109.05 = 15,585,250.30/x
  3. Step 3: Cross multiply
    20,736,072.70x = 31,104,109.05 × 15,585,250.30
  4. Step 4: Simplify right side
    20,736,072.70x = 484,765,324,902,745.25
  5. Step 5: Solve for x
    x = 484,765,324,902,745.25/20,736,072.70
  6. Step 6: Final answer
    x = 23,377,875.45

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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.