Home / 393,339,794.20-590,366,609.70-199,386,136.60

Finding the Fourth Proportional to 393,339,794.20, 590,366,609.70 and 199,386,136.60

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Solution

The fourth proportional to 393,339,794.20, 590,366,609.70 and 199,386,136.60 is: 299,260,128.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,339,794.20 : 590,366,609.70 = 199,386,136.60 : x
  2. Step 2: Convert to fraction form
    393,339,794.20/590,366,609.70 = 199,386,136.60/x
  3. Step 3: Cross multiply
    393,339,794.20x = 590,366,609.70 × 199,386,136.60
  4. Step 4: Simplify right side
    393,339,794.20x = 117,710,917,485,723,088
  5. Step 5: Solve for x
    x = 117,710,917,485,723,088/393,339,794.20
  6. Step 6: Final answer
    x = 299,260,128.83

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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.