Home / 20,238,464.72-27,929,118.04-11,071,107.47

Finding the Fourth Proportional to 20,238,464.72, 27,929,118.04 and 11,071,107.47

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Solution

The fourth proportional to 20,238,464.72, 27,929,118.04 and 11,071,107.47 is: 15,278,148.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238,464.72 : 27,929,118.04 = 11,071,107.47 : x
  2. Step 2: Convert to fraction form
    20,238,464.72/27,929,118.04 = 11,071,107.47/x
  3. Step 3: Cross multiply
    20,238,464.72x = 27,929,118.04 × 11,071,107.47
  4. Step 4: Simplify right side
    20,238,464.72x = 309,206,267,405,300.81
  5. Step 5: Solve for x
    x = 309,206,267,405,300.81/20,238,464.72
  6. Step 6: Final answer
    x = 15,278,148.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.