Home / 20,980,077.62-28,742,808.90-20,193,750

Finding the Fourth Proportional to 20,980,077.62, 28,742,808.90 and 20,193,750

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Solution

The fourth proportional to 20,980,077.62, 28,742,808.90 and 20,193,750 is: 27,665,536.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,980,077.62 : 28,742,808.90 = 20,193,750 : x
  2. Step 2: Convert to fraction form
    20,980,077.62/28,742,808.90 = 20,193,750/x
  3. Step 3: Cross multiply
    20,980,077.62x = 28,742,808.90 × 20,193,750
  4. Step 4: Simplify right side
    20,980,077.62x = 580,425,097,224,375
  5. Step 5: Solve for x
    x = 580,425,097,224,375/20,980,077.62
  6. Step 6: Final answer
    x = 27,665,536.22

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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.