Home / 7,211,145.60-9,951,383.04-3,991,881.60

Finding the Fourth Proportional to 7,211,145.60, 9,951,383.04 and 3,991,881.60

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Solution

The fourth proportional to 7,211,145.60, 9,951,383.04 and 3,991,881.60 is: 5,508,797.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211,145.60 : 9,951,383.04 = 3,991,881.60 : x
  2. Step 2: Convert to fraction form
    7,211,145.60/9,951,383.04 = 3,991,881.60/x
  3. Step 3: Cross multiply
    7,211,145.60x = 9,951,383.04 × 3,991,881.60
  4. Step 4: Simplify right side
    7,211,145.60x = 39,724,742,851,928.06
  5. Step 5: Solve for x
    x = 39,724,742,851,928.06/7,211,145.60
  6. Step 6: Final answer
    x = 5,508,797.78

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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.