Home / 20,155,399.20-30,238,311.12-5,779,519.20

Finding the Fourth Proportional to 20,155,399.20, 30,238,311.12 and 5,779,519.20

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Solution

The fourth proportional to 20,155,399.20, 30,238,311.12 and 5,779,519.20 is: 8,670,773.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155,399.20 : 30,238,311.12 = 5,779,519.20 : x
  2. Step 2: Convert to fraction form
    20,155,399.20/30,238,311.12 = 5,779,519.20/x
  3. Step 3: Cross multiply
    20,155,399.20x = 30,238,311.12 × 5,779,519.20
  4. Step 4: Simplify right side
    20,155,399.20x = 174,762,899,693,613.53
  5. Step 5: Solve for x
    x = 174,762,899,693,613.53/20,155,399.20
  6. Step 6: Final answer
    x = 8,670,773.42

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1.5x scale

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.