Home / 20,178,706.30-30,271,996.05-8,664,151.30

Finding the Fourth Proportional to 20,178,706.30, 30,271,996.05 and 8,664,151.30

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Solution

The fourth proportional to 20,178,706.30, 30,271,996.05 and 8,664,151.30 is: 12,997,917.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178,706.30 : 30,271,996.05 = 8,664,151.30 : x
  2. Step 2: Convert to fraction form
    20,178,706.30/30,271,996.05 = 8,664,151.30/x
  3. Step 3: Cross multiply
    20,178,706.30x = 30,271,996.05 × 8,664,151.30
  4. Step 4: Simplify right side
    20,178,706.30x = 262,281,153,930,202.41
  5. Step 5: Solve for x
    x = 262,281,153,930,202.41/20,178,706.30
  6. Step 6: Final answer
    x = 12,997,917.21

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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.