Home / 81,177,975.20-121,754,000.90-23,656,791.54

Finding the Fourth Proportional to 81,177,975.20, 121,754,000.90 and 23,656,791.54

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Solution

The fourth proportional to 81,177,975.20, 121,754,000.90 and 23,656,791.54 is: 35,481,409.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,177,975.20 : 121,754,000.90 = 23,656,791.54 : x
  2. Step 2: Convert to fraction form
    81,177,975.20/121,754,000.90 = 23,656,791.54/x
  3. Step 3: Cross multiply
    81,177,975.20x = 121,754,000.90 × 23,656,791.54
  4. Step 4: Simplify right side
    81,177,975.20x = 2,880,309,018,452,272.50
  5. Step 5: Solve for x
    x = 2,880,309,018,452,272.50/81,177,975.20
  6. Step 6: Final answer
    x = 35,481,409.97

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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.