Home / 20,811,192.40-31,216,205.40-9,451,622.80

Finding the Fourth Proportional to 20,811,192.40, 31,216,205.40 and 9,451,622.80

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Solution

The fourth proportional to 20,811,192.40, 31,216,205.40 and 9,451,622.80 is: 14,177,169.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,811,192.40 : 31,216,205.40 = 9,451,622.80 : x
  2. Step 2: Convert to fraction form
    20,811,192.40/31,216,205.40 = 9,451,622.80/x
  3. Step 3: Cross multiply
    20,811,192.40x = 31,216,205.40 × 9,451,622.80
  4. Step 4: Simplify right side
    20,811,192.40x = 295,043,798,688,123.12
  5. Step 5: Solve for x
    x = 295,043,798,688,123.12/20,811,192.40
  6. Step 6: Final answer
    x = 14,177,169.33

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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.