Home / 285,433,358.20-428,150,037.30-199,339,916.20

Finding the Fourth Proportional to 285,433,358.20, 428,150,037.30 and 199,339,916.20

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Solution

The fourth proportional to 285,433,358.20, 428,150,037.30 and 199,339,916.20 is: 299,009,874.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,433,358.20 : 428,150,037.30 = 199,339,916.20 : x
  2. Step 2: Convert to fraction form
    285,433,358.20/428,150,037.30 = 199,339,916.20/x
  3. Step 3: Cross multiply
    285,433,358.20x = 428,150,037.30 × 199,339,916.20
  4. Step 4: Simplify right side
    285,433,358.20x = 85,347,392,556,408,864
  5. Step 5: Solve for x
    x = 85,347,392,556,408,864/285,433,358.20
  6. Step 6: Final answer
    x = 299,009,874.30

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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.