Home / 5,378,650.85-7,422,321.56-2,931,209.43

Finding the Fourth Proportional to 5,378,650.85, 7,422,321.56 and 2,931,209.43

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Solution

The fourth proportional to 5,378,650.85, 7,422,321.56 and 2,931,209.43 is: 4,044,950.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378,650.85 : 7,422,321.56 = 2,931,209.43 : x
  2. Step 2: Convert to fraction form
    5,378,650.85/7,422,321.56 = 2,931,209.43/x
  3. Step 3: Cross multiply
    5,378,650.85x = 7,422,321.56 × 2,931,209.43
  4. Step 4: Simplify right side
    5,378,650.85x = 21,756,378,934,508.27
  5. Step 5: Solve for x
    x = 21,756,378,934,508.27/5,378,650.85
  6. Step 6: Final answer
    x = 4,044,950.97

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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.