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Finding the Third Proportional to 139,212,030.94 and 289,857,879.56

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Solution

The third proportional to 139,212,030.94 and 289,857,879.56 is: 603,522,481.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,212,030.94 : 289,857,879.56 = 289,857,879.56 : x
  2. Step 2: Convert to fraction form
    139,212,030.94/289,857,879.56 = 289,857,879.56/x
  3. Step 3: Cross multiply
    139,212,030.94x = 289,857,879.56 × 289,857,879.56
  4. Step 4: Simplify right side
    139,212,030.94x = 84,017,590,344,468,752
  5. Step 5: Solve for x
    x = 84,017,590,344,468,752/139,212,030.94
  6. Step 6: Final answer
    x = 603,522,481.34

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.