Home / 132,099,455.60-198,149,183.40-80,443,390.40

Finding the Fourth Proportional to 132,099,455.60, 198,149,183.40 and 80,443,390.40

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Solution

The fourth proportional to 132,099,455.60, 198,149,183.40 and 80,443,390.40 is: 120,665,085.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,099,455.60 : 198,149,183.40 = 80,443,390.40 : x
  2. Step 2: Convert to fraction form
    132,099,455.60/198,149,183.40 = 80,443,390.40/x
  3. Step 3: Cross multiply
    132,099,455.60x = 198,149,183.40 × 80,443,390.40
  4. Step 4: Simplify right side
    132,099,455.60x = 15,939,792,117,687,402
  5. Step 5: Solve for x
    x = 15,939,792,117,687,402/132,099,455.60
  6. Step 6: Final answer
    x = 120,665,085.60

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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.