Home / 65,373,109.30-90,208,214.76-40,251,229.30

Finding the Fourth Proportional to 65,373,109.30, 90,208,214.76 and 40,251,229.30

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Solution

The fourth proportional to 65,373,109.30, 90,208,214.76 and 40,251,229.30 is: 55,542,585.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,373,109.30 : 90,208,214.76 = 40,251,229.30 : x
  2. Step 2: Convert to fraction form
    65,373,109.30/90,208,214.76 = 40,251,229.30/x
  3. Step 3: Cross multiply
    65,373,109.30x = 90,208,214.76 × 40,251,229.30
  4. Step 4: Simplify right side
    65,373,109.30x = 3,630,991,537,048,404.50
  5. Step 5: Solve for x
    x = 3,630,991,537,048,404.50/65,373,109.30
  6. Step 6: Final answer
    x = 55,542,585.87

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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.