Home / 20,736,019.80-31,104,029.70-15,697,171.80

Finding the Fourth Proportional to 20,736,019.80, 31,104,029.70 and 15,697,171.80

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Solution

The fourth proportional to 20,736,019.80, 31,104,029.70 and 15,697,171.80 is: 23,545,757.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,019.80 : 31,104,029.70 = 15,697,171.80 : x
  2. Step 2: Convert to fraction form
    20,736,019.80/31,104,029.70 = 15,697,171.80/x
  3. Step 3: Cross multiply
    20,736,019.80x = 31,104,029.70 × 15,697,171.80
  4. Step 4: Simplify right side
    20,736,019.80x = 488,245,297,873,202.50
  5. Step 5: Solve for x
    x = 488,245,297,873,202.50/20,736,019.80
  6. Step 6: Final answer
    x = 23,545,757.70

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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.