Home / 18,651,931.48-27,977,947.14-5,188,760.92

Finding the Fourth Proportional to 18,651,931.48, 27,977,947.14 and 5,188,760.92

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Solution

The fourth proportional to 18,651,931.48, 27,977,947.14 and 5,188,760.92 is: 7,783,155.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,651,931.48 : 27,977,947.14 = 5,188,760.92 : x
  2. Step 2: Convert to fraction form
    18,651,931.48/27,977,947.14 = 5,188,760.92/x
  3. Step 3: Cross multiply
    18,651,931.48x = 27,977,947.14 × 5,188,760.92
  4. Step 4: Simplify right side
    18,651,931.48x = 145,170,878,741,857.78
  5. Step 5: Solve for x
    x = 145,170,878,741,857.78/18,651,931.48
  6. Step 6: Final answer
    x = 7,783,155.27

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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.