Home / 71,963,320.70-107,919,723.94-20,133,995.90

Finding the Fourth Proportional to 71,963,320.70, 107,919,723.94 and 20,133,995.90

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Solution

The fourth proportional to 71,963,320.70, 107,919,723.94 and 20,133,995.90 is: 30,193,927.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,963,320.70 : 107,919,723.94 = 20,133,995.90 : x
  2. Step 2: Convert to fraction form
    71,963,320.70/107,919,723.94 = 20,133,995.90/x
  3. Step 3: Cross multiply
    71,963,320.70x = 107,919,723.94 × 20,133,995.90
  4. Step 4: Simplify right side
    71,963,320.70x = 2,172,855,278,747,158.25
  5. Step 5: Solve for x
    x = 2,172,855,278,747,158.25/71,963,320.70
  6. Step 6: Final answer
    x = 30,193,927.37

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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.