Home / 285,433,348.70-428,150,023.05-199,339,906.70

Finding the Fourth Proportional to 285,433,348.70, 428,150,023.05 and 199,339,906.70

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Solution

The fourth proportional to 285,433,348.70, 428,150,023.05 and 199,339,906.70 is: 299,009,860.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,433,348.70 : 428,150,023.05 = 199,339,906.70 : x
  2. Step 2: Convert to fraction form
    285,433,348.70/428,150,023.05 = 199,339,906.70/x
  3. Step 3: Cross multiply
    285,433,348.70x = 428,150,023.05 × 199,339,906.70
  4. Step 4: Simplify right side
    285,433,348.70x = 85,347,385,648,389,840
  5. Step 5: Solve for x
    x = 85,347,385,648,389,840/285,433,348.70
  6. Step 6: Final answer
    x = 299,009,860.05

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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.