Home / 20,980,079.12-28,742,810.96-20,193,751.50

Finding the Fourth Proportional to 20,980,079.12, 28,742,810.96 and 20,193,751.50

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Solution

The fourth proportional to 20,980,079.12, 28,742,810.96 and 20,193,751.50 is: 27,665,538.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,980,079.12 : 28,742,810.96 = 20,193,751.50 : x
  2. Step 2: Convert to fraction form
    20,980,079.12/28,742,810.96 = 20,193,751.50/x
  3. Step 3: Cross multiply
    20,980,079.12x = 28,742,810.96 × 20,193,751.50
  4. Step 4: Simplify right side
    20,980,079.12x = 580,425,181,836,747.62
  5. Step 5: Solve for x
    x = 580,425,181,836,747.62/20,980,079.12
  6. Step 6: Final answer
    x = 27,665,538.28

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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.