Home / 128,196,015.90-192,294,023.85-60,171,567.90

Finding the Fourth Proportional to 128,196,015.90, 192,294,023.85 and 60,171,567.90

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Solution

The fourth proportional to 128,196,015.90, 192,294,023.85 and 60,171,567.90 is: 90,257,351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,196,015.90 : 192,294,023.85 = 60,171,567.90 : x
  2. Step 2: Convert to fraction form
    128,196,015.90/192,294,023.85 = 60,171,567.90/x
  3. Step 3: Cross multiply
    128,196,015.90x = 192,294,023.85 × 60,171,567.90
  4. Step 4: Simplify right side
    128,196,015.90x = 11,570,632,912,854,494
  5. Step 5: Solve for x
    x = 11,570,632,912,854,494/128,196,015.90
  6. Step 6: Final answer
    x = 90,257,351.85

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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.