Home / 139,624,151.91-192,682,668.25-76,901,671.86

Finding the Fourth Proportional to 139,624,151.91, 192,682,668.25 and 76,901,671.86

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Solution

The fourth proportional to 139,624,151.91, 192,682,668.25 and 76,901,671.86 is: 106,125,044.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,624,151.91 : 192,682,668.25 = 76,901,671.86 : x
  2. Step 2: Convert to fraction form
    139,624,151.91/192,682,668.25 = 76,901,671.86/x
  3. Step 3: Cross multiply
    139,624,151.91x = 192,682,668.25 × 76,901,671.86
  4. Step 4: Simplify right side
    139,624,151.91x = 14,817,619,326,870,740
  5. Step 5: Solve for x
    x = 14,817,619,326,870,740/139,624,151.91
  6. Step 6: Final answer
    x = 106,125,044.44

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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.