Home / 82,264,987.70-123,397,481.55-20,854,027.70

Finding the Fourth Proportional to 82,264,987.70, 123,397,481.55 and 20,854,027.70

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Solution

The fourth proportional to 82,264,987.70, 123,397,481.55 and 20,854,027.70 is: 31,281,041.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,264,987.70 : 123,397,481.55 = 20,854,027.70 : x
  2. Step 2: Convert to fraction form
    82,264,987.70/123,397,481.55 = 20,854,027.70/x
  3. Step 3: Cross multiply
    82,264,987.70x = 123,397,481.55 × 20,854,027.70
  4. Step 4: Simplify right side
    82,264,987.70x = 2,573,334,498,353,939
  5. Step 5: Solve for x
    x = 2,573,334,498,353,939/82,264,987.70
  6. Step 6: Final answer
    x = 31,281,041.55

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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.