Home / 20,734,632.90-31,101,949.36-13,167,029.70

Finding the Fourth Proportional to 20,734,632.90, 31,101,949.36 and 13,167,029.70

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Solution

The fourth proportional to 20,734,632.90, 31,101,949.36 and 13,167,029.70 is: 19,750,544.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734,632.90 : 31,101,949.36 = 13,167,029.70 : x
  2. Step 2: Convert to fraction form
    20,734,632.90/31,101,949.36 = 13,167,029.70/x
  3. Step 3: Cross multiply
    20,734,632.90x = 31,101,949.36 × 13,167,029.70
  4. Step 4: Simplify right side
    20,734,632.90x = 409,520,290,951,015.94
  5. Step 5: Solve for x
    x = 409,520,290,951,015.94/20,734,632.90
  6. Step 6: Final answer
    x = 19,750,544.56

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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.