Home / 205,278,811.92-307,964,174.10-68,960,477.52

Finding the Fourth Proportional to 205,278,811.92, 307,964,174.10 and 68,960,477.52

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Solution

The fourth proportional to 205,278,811.92, 307,964,174.10 and 68,960,477.52 is: 103,456,154.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,278,811.92 : 307,964,174.10 = 68,960,477.52 : x
  2. Step 2: Convert to fraction form
    205,278,811.92/307,964,174.10 = 68,960,477.52/x
  3. Step 3: Cross multiply
    205,278,811.92x = 307,964,174.10 × 68,960,477.52
  4. Step 4: Simplify right side
    205,278,811.92x = 21,237,356,504,988,416
  5. Step 5: Solve for x
    x = 21,237,356,504,988,416/205,278,811.92
  6. Step 6: Final answer
    x = 103,456,154.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.