Home / 139,343,349.92-192,010,479.14-107,789,787.56

Finding the Fourth Proportional to 139,343,349.92, 192,010,479.14 and 107,789,787.56

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Solution

The fourth proportional to 139,343,349.92, 192,010,479.14 and 107,789,787.56 is: 148,530,724.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,343,349.92 : 192,010,479.14 = 107,789,787.56 : x
  2. Step 2: Convert to fraction form
    139,343,349.92/192,010,479.14 = 107,789,787.56/x
  3. Step 3: Cross multiply
    139,343,349.92x = 192,010,479.14 × 107,789,787.56
  4. Step 4: Simplify right side
    139,343,349.92x = 20,696,768,755,794,412
  5. Step 5: Solve for x
    x = 20,696,768,755,794,412/139,343,349.92
  6. Step 6: Final answer
    x = 148,530,724.77

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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.