Home / 641,991,791.20-886,219,882.32-433,430,433.76

Finding the Fourth Proportional to 641,991,791.20, 886,219,882.32 and 433,430,433.76

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Solution

The fourth proportional to 641,991,791.20, 886,219,882.32 and 433,430,433.76 is: 598,317,101.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,991,791.20 : 886,219,882.32 = 433,430,433.76 : x
  2. Step 2: Convert to fraction form
    641,991,791.20/886,219,882.32 = 433,430,433.76/x
  3. Step 3: Cross multiply
    641,991,791.20x = 886,219,882.32 × 433,430,433.76
  4. Step 4: Simplify right side
    641,991,791.20x = 384,114,668,000,693,760
  5. Step 5: Solve for x
    x = 384,114,668,000,693,760/641,991,791.20
  6. Step 6: Final answer
    x = 598,317,101.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.