Home / 139,234,778.46-192,147,194.52-76,514,775.84

Finding the Fourth Proportional to 139,234,778.46, 192,147,194.52 and 76,514,775.84

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Solution

The fourth proportional to 139,234,778.46, 192,147,194.52 and 76,514,775.84 is: 105,592,149.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,234,778.46 : 192,147,194.52 = 76,514,775.84 : x
  2. Step 2: Convert to fraction form
    139,234,778.46/192,147,194.52 = 76,514,775.84/x
  3. Step 3: Cross multiply
    139,234,778.46x = 192,147,194.52 × 76,514,775.84
  4. Step 4: Simplify right side
    139,234,778.46x = 14,702,099,516,982,678
  5. Step 5: Solve for x
    x = 14,702,099,516,982,678/139,234,778.46
  6. Step 6: Final answer
    x = 105,592,149.31

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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.