Home / 20,129,606.40-30,135,427.20-17,770,310.40

Finding the Fourth Proportional to 20,129,606.40, 30,135,427.20 and 17,770,310.40

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Solution

The fourth proportional to 20,129,606.40, 30,135,427.20 and 17,770,310.40 is: 26,603,396.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,129,606.40 : 30,135,427.20 = 17,770,310.40 : x
  2. Step 2: Convert to fraction form
    20,129,606.40/30,135,427.20 = 17,770,310.40/x
  3. Step 3: Cross multiply
    20,129,606.40x = 30,135,427.20 × 17,770,310.40
  4. Step 4: Simplify right side
    20,129,606.40x = 535,515,895,380,602.81
  5. Step 5: Solve for x
    x = 535,515,895,380,602.81/20,129,606.40
  6. Step 6: Final answer
    x = 26,603,396.25

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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.