Home / 20,800,709.50-31,175,509.83-11,683,642.36

Finding the Fourth Proportional to 20,800,709.50, 31,175,509.83 and 11,683,642.36

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Solution

The fourth proportional to 20,800,709.50, 31,175,509.83 and 11,683,642.36 is: 17,511,109.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,800,709.50 : 31,175,509.83 = 11,683,642.36 : x
  2. Step 2: Convert to fraction form
    20,800,709.50/31,175,509.83 = 11,683,642.36/x
  3. Step 3: Cross multiply
    20,800,709.50x = 31,175,509.83 × 11,683,642.36
  4. Step 4: Simplify right side
    20,800,709.50x = 364,243,507,244,384.38
  5. Step 5: Solve for x
    x = 364,243,507,244,384.38/20,800,709.50
  6. Step 6: Final answer
    x = 17,511,109.77

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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.