Home / 20,442,815.90-30,664,223.85-15,340,982.30

Finding the Fourth Proportional to 20,442,815.90, 30,664,223.85 and 15,340,982.30

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Solution

The fourth proportional to 20,442,815.90, 30,664,223.85 and 15,340,982.30 is: 23,011,473.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,442,815.90 : 30,664,223.85 = 15,340,982.30 : x
  2. Step 2: Convert to fraction form
    20,442,815.90/30,664,223.85 = 15,340,982.30/x
  3. Step 3: Cross multiply
    20,442,815.90x = 30,664,223.85 × 15,340,982.30
  4. Step 4: Simplify right side
    20,442,815.90x = 470,419,315,326,087.88
  5. Step 5: Solve for x
    x = 470,419,315,326,087.88/20,442,815.90
  6. Step 6: Final answer
    x = 23,011,473.45

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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.