Home / 20,391,832.80-30,587,749.20-18,159,780.60

Finding the Fourth Proportional to 20,391,832.80, 30,587,749.20 and 18,159,780.60

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Solution

The fourth proportional to 20,391,832.80, 30,587,749.20 and 18,159,780.60 is: 27,239,670.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,391,832.80 : 30,587,749.20 = 18,159,780.60 : x
  2. Step 2: Convert to fraction form
    20,391,832.80/30,587,749.20 = 18,159,780.60/x
  3. Step 3: Cross multiply
    20,391,832.80x = 30,587,749.20 × 18,159,780.60
  4. Step 4: Simplify right side
    20,391,832.80x = 555,466,814,519,825.56
  5. Step 5: Solve for x
    x = 555,466,814,519,825.56/20,391,832.80
  6. Step 6: Final answer
    x = 27,239,670.90

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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.