Home / 439,858,250.34-659,930,696.92-209,797,397.70

Finding the Fourth Proportional to 439,858,250.34, 659,930,696.92 and 209,797,397.70

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Solution

The fourth proportional to 439,858,250.34, 659,930,696.92 and 209,797,397.70 is: 314,764,455.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,858,250.34 : 659,930,696.92 = 209,797,397.70 : x
  2. Step 2: Convert to fraction form
    439,858,250.34/659,930,696.92 = 209,797,397.70/x
  3. Step 3: Cross multiply
    439,858,250.34x = 659,930,696.92 × 209,797,397.70
  4. Step 4: Simplify right side
    439,858,250.34x = 138,451,742,876,163,392
  5. Step 5: Solve for x
    x = 138,451,742,876,163,392/439,858,250.34
  6. Step 6: Final answer
    x = 314,764,455.98

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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.