Home / 393,337,722.20-590,363,501.70-199,384,064.60

Finding the Fourth Proportional to 393,337,722.20, 590,363,501.70 and 199,384,064.60

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Solution

The fourth proportional to 393,337,722.20, 590,363,501.70 and 199,384,064.60 is: 299,257,019.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,337,722.20 : 590,363,501.70 = 199,384,064.60 : x
  2. Step 2: Convert to fraction form
    393,337,722.20/590,363,501.70 = 199,384,064.60/x
  3. Step 3: Cross multiply
    393,337,722.20x = 590,363,501.70 × 199,384,064.60
  4. Step 4: Simplify right side
    393,337,722.20x = 117,709,074,560,435,008
  5. Step 5: Solve for x
    x = 117,709,074,560,435,008/393,337,722.20
  6. Step 6: Final answer
    x = 299,257,019.90

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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.