Home / 79,542,263.70-109,783,390.77-49,786,709.58

Finding the Fourth Proportional to 79,542,263.70, 109,783,390.77 and 49,786,709.58

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Solution

The fourth proportional to 79,542,263.70, 109,783,390.77 and 49,786,709.58 is: 68,715,089.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,542,263.70 : 109,783,390.77 = 49,786,709.58 : x
  2. Step 2: Convert to fraction form
    79,542,263.70/109,783,390.77 = 49,786,709.58/x
  3. Step 3: Cross multiply
    79,542,263.70x = 109,783,390.77 × 49,786,709.58
  4. Step 4: Simplify right side
    79,542,263.70x = 5,465,753,792,973,642
  5. Step 5: Solve for x
    x = 5,465,753,792,973,642/79,542,263.70
  6. Step 6: Final answer
    x = 68,715,089.80

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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.