Home / 20,412,904.12-28,169,758.37-11,120,550.55

Finding the Fourth Proportional to 20,412,904.12, 28,169,758.37 and 11,120,550.55

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Solution

The fourth proportional to 20,412,904.12, 28,169,758.37 and 11,120,550.55 is: 15,346,332.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412,904.12 : 28,169,758.37 = 11,120,550.55 : x
  2. Step 2: Convert to fraction form
    20,412,904.12/28,169,758.37 = 11,120,550.55/x
  3. Step 3: Cross multiply
    20,412,904.12x = 28,169,758.37 × 11,120,550.55
  4. Step 4: Simplify right side
    20,412,904.12x = 313,263,221,738,419.06
  5. Step 5: Solve for x
    x = 313,263,221,738,419.06/20,412,904.12
  6. Step 6: Final answer
    x = 15,346,332.88

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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.