Home / 71,963,321.70-107,919,725.44-20,133,996.90

Finding the Fourth Proportional to 71,963,321.70, 107,919,725.44 and 20,133,996.90

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Solution

The fourth proportional to 71,963,321.70, 107,919,725.44 and 20,133,996.90 is: 30,193,928.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,963,321.70 : 107,919,725.44 = 20,133,996.90 : x
  2. Step 2: Convert to fraction form
    71,963,321.70/107,919,725.44 = 20,133,996.90/x
  3. Step 3: Cross multiply
    71,963,321.70x = 107,919,725.44 × 20,133,996.90
  4. Step 4: Simplify right side
    71,963,321.70x = 2,172,855,417,457,811
  5. Step 5: Solve for x
    x = 2,172,855,417,457,811/71,963,321.70
  6. Step 6: Final answer
    x = 30,193,928.88

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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.