Home / 20,980,079.46-28,742,811.39-20,193,751.83

Finding the Fourth Proportional to 20,980,079.46, 28,742,811.39 and 20,193,751.83

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Solution

The fourth proportional to 20,980,079.46, 28,742,811.39 and 20,193,751.83 is: 27,665,538.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,980,079.46 : 28,742,811.39 = 20,193,751.83 : x
  2. Step 2: Convert to fraction form
    20,980,079.46/28,742,811.39 = 20,193,751.83/x
  3. Step 3: Cross multiply
    20,980,079.46x = 28,742,811.39 × 20,193,751.83
  4. Step 4: Simplify right side
    20,980,079.46x = 580,425,200,094,844.75
  5. Step 5: Solve for x
    x = 580,425,200,094,844.75/20,980,079.46
  6. Step 6: Final answer
    x = 27,665,538.70

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.