Home / 20,084,920.20-30,127,380.30-10,503,235.80

Finding the Fourth Proportional to 20,084,920.20, 30,127,380.30 and 10,503,235.80

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Solution

The fourth proportional to 20,084,920.20, 30,127,380.30 and 10,503,235.80 is: 15,754,853.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,084,920.20 : 30,127,380.30 = 10,503,235.80 : x
  2. Step 2: Convert to fraction form
    20,084,920.20/30,127,380.30 = 10,503,235.80/x
  3. Step 3: Cross multiply
    20,084,920.20x = 30,127,380.30 × 10,503,235.80
  4. Step 4: Simplify right side
    20,084,920.20x = 316,434,979,327,174.75
  5. Step 5: Solve for x
    x = 316,434,979,327,174.75/20,084,920.20
  6. Step 6: Final answer
    x = 15,754,853.70

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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.