Home / 20,736,017.52-28,615,722.12-11,568,662.16

Finding the Fourth Proportional to 20,736,017.52, 28,615,722.12 and 11,568,662.16

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Solution

The fourth proportional to 20,736,017.52, 28,615,722.12 and 11,568,662.16 is: 15,964,763.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,017.52 : 28,615,722.12 = 11,568,662.16 : x
  2. Step 2: Convert to fraction form
    20,736,017.52/28,615,722.12 = 11,568,662.16/x
  3. Step 3: Cross multiply
    20,736,017.52x = 28,615,722.12 × 11,568,662.16
  4. Step 4: Simplify right side
    20,736,017.52x = 331,045,621,670,719
  5. Step 5: Solve for x
    x = 331,045,621,670,719/20,736,017.52
  6. Step 6: Final answer
    x = 15,964,763.79

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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.