Home / 20,956,221.28-31,439,562.36-7,309,564.16

Finding the Fourth Proportional to 20,956,221.28, 31,439,562.36 and 7,309,564.16

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Solution

The fourth proportional to 20,956,221.28, 31,439,562.36 and 7,309,564.16 is: 10,966,170.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,221.28 : 31,439,562.36 = 7,309,564.16 : x
  2. Step 2: Convert to fraction form
    20,956,221.28/31,439,562.36 = 7,309,564.16/x
  3. Step 3: Cross multiply
    20,956,221.28x = 31,439,562.36 × 7,309,564.16
  4. Step 4: Simplify right side
    20,956,221.28x = 229,809,498,232,741.03
  5. Step 5: Solve for x
    x = 229,809,498,232,741.03/20,956,221.28
  6. Step 6: Final answer
    x = 10,966,170.63

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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.