Home / 65,373,109.80-90,208,215.42-40,251,229.80

Finding the Fourth Proportional to 65,373,109.80, 90,208,215.42 and 40,251,229.80

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Solution

The fourth proportional to 65,373,109.80, 90,208,215.42 and 40,251,229.80 is: 55,542,586.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,373,109.80 : 90,208,215.42 = 40,251,229.80 : x
  2. Step 2: Convert to fraction form
    65,373,109.80/90,208,215.42 = 40,251,229.80/x
  3. Step 3: Cross multiply
    65,373,109.80x = 90,208,215.42 × 40,251,229.80
  4. Step 4: Simplify right side
    65,373,109.80x = 3,630,991,608,718,323.50
  5. Step 5: Solve for x
    x = 3,630,991,608,718,323.50/65,373,109.80
  6. Step 6: Final answer
    x = 55,542,586.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.