Home / 20,801,805.70-31,206,964.28-7,153,179.46

Finding the Fourth Proportional to 20,801,805.70, 31,206,964.28 and 7,153,179.46

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Solution

The fourth proportional to 20,801,805.70, 31,206,964.28 and 7,153,179.46 is: 10,731,232.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,801,805.70 : 31,206,964.28 = 7,153,179.46 : x
  2. Step 2: Convert to fraction form
    20,801,805.70/31,206,964.28 = 7,153,179.46/x
  3. Step 3: Cross multiply
    20,801,805.70x = 31,206,964.28 × 7,153,179.46
  4. Step 4: Simplify right side
    20,801,805.70x = 223,229,015,896,649.69
  5. Step 5: Solve for x
    x = 223,229,015,896,649.69/20,801,805.70
  6. Step 6: Final answer
    x = 10,731,232.62

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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.