Home / 20,504,958.30-30,757,437.45-10,915,400.70

Finding the Fourth Proportional to 20,504,958.30, 30,757,437.45 and 10,915,400.70

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Solution

The fourth proportional to 20,504,958.30, 30,757,437.45 and 10,915,400.70 is: 16,373,101.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504,958.30 : 30,757,437.45 = 10,915,400.70 : x
  2. Step 2: Convert to fraction form
    20,504,958.30/30,757,437.45 = 10,915,400.70/x
  3. Step 3: Cross multiply
    20,504,958.30x = 30,757,437.45 × 10,915,400.70
  4. Step 4: Simplify right side
    20,504,958.30x = 335,729,754,271,936.19
  5. Step 5: Solve for x
    x = 335,729,754,271,936.19/20,504,958.30
  6. Step 6: Final answer
    x = 16,373,101.05

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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.