Home / 20,199,829.20-30,299,743.80-10,098,805.20

Finding the Fourth Proportional to 20,199,829.20, 30,299,743.80 and 10,098,805.20

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Solution

The fourth proportional to 20,199,829.20, 30,299,743.80 and 10,098,805.20 is: 15,148,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199,829.20 : 30,299,743.80 = 10,098,805.20 : x
  2. Step 2: Convert to fraction form
    20,199,829.20/30,299,743.80 = 10,098,805.20/x
  3. Step 3: Cross multiply
    20,199,829.20x = 30,299,743.80 × 10,098,805.20
  4. Step 4: Simplify right side
    20,199,829.20x = 305,991,210,246,107.75
  5. Step 5: Solve for x
    x = 305,991,210,246,107.75/20,199,829.20
  6. Step 6: Final answer
    x = 15,148,207.80

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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.