Home / 21,177,766.50-31,780,087.95-9,047,321.33

Finding the Fourth Proportional to 21,177,766.50, 31,780,087.95 and 9,047,321.33

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Solution

The fourth proportional to 21,177,766.50, 31,780,087.95 and 9,047,321.33 is: 13,576,722.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,177,766.50 : 31,780,087.95 = 9,047,321.33 : x
  2. Step 2: Convert to fraction form
    21,177,766.50/31,780,087.95 = 9,047,321.33/x
  3. Step 3: Cross multiply
    21,177,766.50x = 31,780,087.95 × 9,047,321.33
  4. Step 4: Simplify right side
    21,177,766.50x = 287,524,667,420,410.50
  5. Step 5: Solve for x
    x = 287,524,667,420,410.50/21,177,766.50
  6. Step 6: Final answer
    x = 13,576,722.90

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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.