Home / 20,394,057.80-30,591,086.70-15,355,209.80

Finding the Fourth Proportional to 20,394,057.80, 30,591,086.70 and 15,355,209.80

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Solution

The fourth proportional to 20,394,057.80, 30,591,086.70 and 15,355,209.80 is: 23,032,814.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,394,057.80 : 30,591,086.70 = 15,355,209.80 : x
  2. Step 2: Convert to fraction form
    20,394,057.80/30,591,086.70 = 15,355,209.80/x
  3. Step 3: Cross multiply
    20,394,057.80x = 30,591,086.70 × 15,355,209.80
  4. Step 4: Simplify right side
    20,394,057.80x = 469,732,554,288,489.69
  5. Step 5: Solve for x
    x = 469,732,554,288,489.69/20,394,057.80
  6. Step 6: Final answer
    x = 23,032,814.70

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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.