Home / 125,388,906.10-188,083,359.15-76,283,757.70

Finding the Fourth Proportional to 125,388,906.10, 188,083,359.15 and 76,283,757.70

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Solution

The fourth proportional to 125,388,906.10, 188,083,359.15 and 76,283,757.70 is: 114,425,636.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,388,906.10 : 188,083,359.15 = 76,283,757.70 : x
  2. Step 2: Convert to fraction form
    125,388,906.10/188,083,359.15 = 76,283,757.70/x
  3. Step 3: Cross multiply
    125,388,906.10x = 188,083,359.15 × 76,283,757.70
  4. Step 4: Simplify right side
    125,388,906.10x = 14,347,705,396,800,678
  5. Step 5: Solve for x
    x = 14,347,705,396,800,678/125,388,906.10
  6. Step 6: Final answer
    x = 114,425,636.55

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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.