Home / 21,862,121.80-32,793,182.70-20,219,830.60

Finding the Fourth Proportional to 21,862,121.80, 32,793,182.70 and 20,219,830.60

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Solution

The fourth proportional to 21,862,121.80, 32,793,182.70 and 20,219,830.60 is: 30,329,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,862,121.80 : 32,793,182.70 = 20,219,830.60 : x
  2. Step 2: Convert to fraction form
    21,862,121.80/32,793,182.70 = 20,219,830.60/x
  3. Step 3: Cross multiply
    21,862,121.80x = 32,793,182.70 × 20,219,830.60
  4. Step 4: Simplify right side
    21,862,121.80x = 663,072,599,028,850.62
  5. Step 5: Solve for x
    x = 663,072,599,028,850.62/21,862,121.80
  6. Step 6: Final answer
    x = 30,329,745.90

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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.