Home / 298,278,481.21-447,390,115.88-140,675,358.29

Finding the Fourth Proportional to 298,278,481.21, 447,390,115.88 and 140,675,358.29

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Solution

The fourth proportional to 298,278,481.21, 447,390,115.88 and 140,675,358.29 is: 211,000,017.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,278,481.21 : 447,390,115.88 = 140,675,358.29 : x
  2. Step 2: Convert to fraction form
    298,278,481.21/447,390,115.88 = 140,675,358.29/x
  3. Step 3: Cross multiply
    298,278,481.21x = 447,390,115.88 × 140,675,358.29
  4. Step 4: Simplify right side
    298,278,481.21x = 62,936,764,844,938,352
  5. Step 5: Solve for x
    x = 62,936,764,844,938,352/298,278,481.21
  6. Step 6: Final answer
    x = 211,000,017.80

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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.