Home / 126,372,968.10-189,559,452.15-71,764,452.90

Finding the Fourth Proportional to 126,372,968.10, 189,559,452.15 and 71,764,452.90

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Solution

The fourth proportional to 126,372,968.10, 189,559,452.15 and 71,764,452.90 is: 107,646,679.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,372,968.10 : 189,559,452.15 = 71,764,452.90 : x
  2. Step 2: Convert to fraction form
    126,372,968.10/189,559,452.15 = 71,764,452.90/x
  3. Step 3: Cross multiply
    126,372,968.10x = 189,559,452.15 × 71,764,452.90
  4. Step 4: Simplify right side
    126,372,968.10x = 13,603,630,375,568,480
  5. Step 5: Solve for x
    x = 13,603,630,375,568,480/126,372,968.10
  6. Step 6: Final answer
    x = 107,646,679.35

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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.