Home / 20,522,567.75-28,321,142.60-11,230,138.59

Finding the Fourth Proportional to 20,522,567.75, 28,321,142.60 and 11,230,138.59

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Solution

The fourth proportional to 20,522,567.75, 28,321,142.60 and 11,230,138.59 is: 15,497,590.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,522,567.75 : 28,321,142.60 = 11,230,138.59 : x
  2. Step 2: Convert to fraction form
    20,522,567.75/28,321,142.60 = 11,230,138.59/x
  3. Step 3: Cross multiply
    20,522,567.75x = 28,321,142.60 × 11,230,138.59
  4. Step 4: Simplify right side
    20,522,567.75x = 318,050,356,362,225.38
  5. Step 5: Solve for x
    x = 318,050,356,362,225.38/20,522,567.75
  6. Step 6: Final answer
    x = 15,497,590.76

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1.5x scale

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.