Home / 13,828,311.35-20,742,467.03-6,653,857.85

Finding the Fourth Proportional to 13,828,311.35, 20,742,467.03 and 6,653,857.85

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Solution

The fourth proportional to 13,828,311.35, 20,742,467.03 and 6,653,857.85 is: 9,980,786.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828,311.35 : 20,742,467.03 = 6,653,857.85 : x
  2. Step 2: Convert to fraction form
    13,828,311.35/20,742,467.03 = 6,653,857.85/x
  3. Step 3: Cross multiply
    13,828,311.35x = 20,742,467.03 × 6,653,857.85
  4. Step 4: Simplify right side
    13,828,311.35x = 138,017,427,042,662.38
  5. Step 5: Solve for x
    x = 138,017,427,042,662.38/13,828,311.35
  6. Step 6: Final answer
    x = 9,980,786.78

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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.