Home / 20,019,047.20-27,626,078.10-11,198,383.72

Finding the Fourth Proportional to 20,019,047.20, 27,626,078.10 and 11,198,383.72

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Solution

The fourth proportional to 20,019,047.20, 27,626,078.10 and 11,198,383.72 is: 15,453,653.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,019,047.20 : 27,626,078.10 = 11,198,383.72 : x
  2. Step 2: Convert to fraction form
    20,019,047.20/27,626,078.10 = 11,198,383.72/x
  3. Step 3: Cross multiply
    20,019,047.20x = 27,626,078.10 × 11,198,383.72
  4. Step 4: Simplify right side
    20,019,047.20x = 309,367,423,242,488.56
  5. Step 5: Solve for x
    x = 309,367,423,242,488.56/20,019,047.20
  6. Step 6: Final answer
    x = 15,453,653.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.